Text

Proposed License Amendment Numbers 267 for Unit 1 and 232 for Unit 2 Mode Change Limitations Using the Consolidated Line Item Improvement (CLIIP) Process PLA-5764
	ML042720489
Person / Time
Site:	Susquehanna
Issue date:	09/22/2004
From:	Mckinney B; Susquehanna
To:	; Document Control Desk, Office of Nuclear Reactor Regulation
References
	PLA-5764, TSTF-359
	Download: ML042720489 (87)
	v • d • e

Britt T. McKinney PPL Susquehanna, LLC Vice President-Nuclear Site Op6rations 769 Salem Boulevard Berwick, PA 18603 Tel. 570.542.3149 Fax 570.542.1504 btmckinney@pplweb.com SEP 2 2 2004 pp U. S. Nuclear Regulatory Commission Attn: Document Control Desk Mail Stop OP1-17 Washington, DC 20555 SUSQUEHANNA STEAM ELECTRIC STATION PROPOSED LICENSE AMENDMENT NUMBERS 267 FOR UNIT 1 AND 232 FOR UNIT 2 MODE CHANGE LIMITATIONS USING THE CONSOLIDATED LINE ITEM IMPROVEMENT (CLIIP) PROCESS Docket Nos. 50-387 PLA-5764 and 50-388

Reference:

FederalRegisterNotice (FRN) 68 FR 16579, dated April 4, 2003 Pursuant to 10 CFR 50.90, PPL Susquehanna, LLC (PPL), hereby requests the following amendments to the Susquehanna Steam Electric Station (SSES) Unit 1 and Unit 2 Technical Specifications (TS), as described in the enclosure. The proposal would modify technical specifications requirements for mode change limitations in Limiting Condition for Operation (LCO) 3.0.4 and Surveillance Requirements (SR) 3.0.4. The proposal adopts the provisions of Industry/Technical Specification Task Force (TSTF) Change TSTF-359 Revision 9 "Increase Flexibility in Mode Restraints." TSTF-359 Revision 9 is the equivalent of TSTF-359 Revision 8, as modified by the notice in the Federal Register published on April 4, 2003.

The enclosure provides a description of the proposed change (including a table of affected TS with a brief descriptor of the change), the requested confirmation of applicability, and plant specific verifications. As demonstrated in the enclosed evaluation, the proposed amendments do not involve a significant hazard consideration.

PPL Susquehanna, LLC requests approval of the proposed amendment by February 28, 2005. Once approved, the amendment shall be implemented within 90 days. contains the Technical Specifications marked-up showing the proposed changes. 00

i=

Document Control Desk PLA-5764 is a mark-up showing the changes to the Technical Specification Bases, for your information.

There are no regulatory commitments or changes to any existing regulatory commitments associated with the proposed changes.

The proposed changes have been approved by the SSES Plant Operations Review Committee and reviewed by the Susquehanna Review Committee. In accordance with 10 CFR 50.91(b), PPL Susquehanna LLC is providing the Commonwealth of Pennsylvania with a copy of this proposed License Amendment request.

If you have any questions or require additional information, please contact Mr. Michael H. Crowthers at (610) 774-7766.

I declare under penalty of perjury that the foregoing is true and correct.

Executed on: A L B. T. McKinney

Enclosure:

PPL Susquehanna Evaluation of the Proposed Changes Attachments:

Attachment 1 - Proposed Technical Specification Changes (Mark-up)

Attachment 2 - Changes to Technical Specifications Bases Pages Copy: NRC Region 1 Mr. A. J. Blamey, NRC Sr. Resident Inspector Mr. R. Guzman, NRC Project Manager Mr. R. Janati DEP/BRP

Enclosure to PLA-5764 PPL Susquehanna Evaluation of Proposed Change Mode Change Limitations Using the Consolidated Line Item Improvement (CLIIP) Process

1. DESCRIPTION

2. ASSESSMENT 2.1 Applicability of Published Safety Evaluation 2.2 Optional Changes and Variations

3. REGULATORY ANALYSIS 3.1 No Significant Hazards Consideration 3.2 Verification and Commitments

4. ENVIRONMENTAL EVALUATION

5. REFERENCES

Enclosure to PLA-5764 Page 1 of 5

SUBJECT:

Application for Amendment to Technical Specification

1.0 DESCRIPTION

The proposed changes would modify Technical Specification (TS) requirements for mode change limitations in LCO 3.0.4 and SR 3.0.4. The proposed change will allow mode changes with inoperable equipment unless an LCO 3.0.4 exemption note specifically excludes it. The current LCO 3.0.4 requirement ensures all LCO requirements are met prior to a mode change unless a specific LCO 3.0.4 exemption note exists.

The proposed changes are consistent with Nuclear Regulatory Commission (NRC) approved Industry/Technical Specification Task Force (TSTF) Standard Technical Specifications change TSTF-359, Revision 9 (Reference 1). TSTF-359, Revision 9 is the equivalent of TSTF-359, Revision 8 as modified by the notice in the Federal Register published on April 4, 2003 (Reference 2). That Federal register notice announced the availability of TS improvement through the Consolidated Line Item Improvement Process (CLIIP). The Federal Register notice also requires that plants adopting TSTF-359 have a TS Bases Control Program consistent with Section 5.5 of the Improved Standard Technical Specifications (ISTS), and the equivalent of ISTS SR 3.0.1 and associated bases. These provisions are already contained in the Susquehanna Technical Specifications and Bases.

The affected TS and a brief description of the proposed changes are included in Table 1.

Table 1 Proposed Changes to the PPL Susquehanna Units 1 and 2 Technical Specifications (TS) 1 .w 1:

LCO 3.0.4 Addition of risk-informed evaluation of Mode changes SR 3.0.4 Clarification of relationship to SR 3.0.3 3.3.3.1 Post Accident Monitoring Deletion of the Note exempting the (PAM) Instrumentation LCO ACTIONS from LCO 3.0.4 3.3.3.2 Remote Shutdown System Deletion of the Note exempting the LCO ACTIONS from LCO 3.0.4

Enclosure to PLA-5764 Page 2 of 5 e *H Desciptonoahig ia I

3.4.6 Reactor Coolant System Deletion of the Note exempting (RCS) Leakage Detection Required Actions A.l and B.1 from Instrumentation LCO 3.0.4 3.4.7 RCS Specific Activity Deletion of the Note exempting Required Action A.1 from LCO 3.0.4.

Addition of Note stating applicability of LCO 3.0.4.c to Required Action A.1 3.4.8 Residual Heat Removal Deletion of the Note exempting the (RHR) Shutdown Cooling LCO from LCO 3.0.4 System - Hot Shutdown 3.5.1 Emergency Core Cooling Addition of Note stating that LCO Systems (ECCS) - Operating 3.0.4.b is not applicable to the High Pressure Coolant Injection System (HPCI) 3.5.3 Reactor Core Isolation Addition of Note stating that LCO Cooling (RCIC) System 3.0.4.b is not applicable to RCIC 3.6.3.1 Primary Containment Deletion of the Note Exempting Hydrogen Recombiners Required Action A.1 from LCO 3.0.4 3.6.3.2 Drywell Air Flow System Deletion of the Note Exempting Required Action A.1 from LCO 3.0.4 3.8.1 AC Sources - Operating Addition of Note stating that LCO 3.0.4.b is not applicable to Diesel Generators (DGs) 2.0 ASSESSMENT 2.1 Applicability of Published Safety Evaluation PPL Susquehanna, LLC (PPL) has reviewed the safety evaluation included in FRN 68 FR 16579, as part of the CLIIP. This review included a review of the NRC staff's evaluation, as well as the supporting information provided to support TSTF-359 Revision 8, and included the updates-made iniTSTF-359, Revision 9. PPL has concluded that the justifications presented in the TSTF proposal and the safety evaluation prepared by the NRC staff are applicable to Susquehanna Units 1 and 2 and justify this amendment for the incorporation of the changes to the Susquehanna Units 1 and 2 Technical Specifications.

Enclosure to PLA-5764 Page 3 of 5 2.2 Optional Changes and Variations PPL Susquehanna, LLC (PPL) is not proposing any variations or deviations from the TS changes described in TSTF-359 Revision 9 and the NRC staff's model safety evaluation included in the Federal Register Notice dated April 4, 2003.

However minor differences exist between the current PPL Susquehanna Units 1 and 2 Technical Specifications and Bases relative to the model STS in NUREG 1433, Revision 2, Standard Technical Specifications, "General Electric Plants, BWR/4", and thus small differences from the TSTF mark-ups are necessary. These differences and variances are discussed below and do not affect the adoption or application of TSTF-359 Revision 9. All other TS Sections are modified without variance, as described in Section 1.0, above.

1. Susquehanna Units 1 and 2 LCO 3.0.4 have an additional sentence following the sentence, "Exceptions to this Specification are stated in the individual Specifications." in the TSTF mark-ups. The additional sentence, which will be deleted, is 'These exceptions allow entry into MODES or other specified conditions in the Applicability when the associated ACTIONS to be entered allow unit operation in the MODE or other specified condition in the Applicability only for a limited period of time."

Susquehanna Units 1 and 2 LCO 3.0.4 Bases have a different sentence following the sentence "Exceptions to LCO 3.0.4 are stated in the individual Specifications", in the TSTF mark-ups. The different sentence, which will be deleted, is "Exceptions may apply to all the ACTIONS or to a specific Required Action of a Specification."

2. In the TSTF mark-ups, STS 3.3.6.3, "Low-Low Set (LLS)

Instrumentation", the note is modified. Susquehanna Units 1 and 2 do not include this TS, so no changes are needed.

3. In the TSTF mark-up STS B 3.4.6, Bases "RCS Leakage Detection Instrumentation", ACTIONS, the paragraph beginning 'The Actions are modified...." is deleted. The Susquehanna Units 1 and 2 TS Bases do not include this paragraph, so no changes are needed.

4. In the TSTF mark-ups, STS 3.6.3.4 "Containment Atmosphere Dilution (CAD) System", the Note is deleted. Susquehanna Units 1 and 2 do not include this TS, so no changes are needed.

Enclosure to PLA-5764 Page 4 of 5

5. In the TSTF mark-ups, STS 3.7.3, "Diesel Generator (DG) Standby Service Water (SSW) System", the Note in Required Action A.1, which is the LCO 3.0.4 non-applicability Note, is deleted. The equivalent TS for Susquehanna Units 1 and 2 is TS 3.7.2, "Emergency Service Water (ESW)

System", and does not contain an LCO 3.0.4 non -applicability Note, so no changes are needed.

3.0 REGULATORY ANALYSIS

3.1 No Significant Hazards Consideration Determination PPL Susquehanna, LLC (PPL) has reviewed the proposed no significant hazards consideration determination (NSHCD) published in the FederalRegister as part of the CLIIP. PPL has concluded that the proposed NSHCD presented in the Federal Register notice is applicable to Susquehanna Units 1 and 2 and is hereby incorporated by reference to satisfy the requirements of 10 CFR 50.91(a).

3.2 Verification and Commitments As discussed in the notice of availability published in the FederalRegister on April 4, 2003 for this TS improvement, plant-specific verifications were performed as follows:

PPL has established TS Bases for [LCO 3.0.4 and SR 3.0.4] which state that use of the TS mode change limitation flexibility established by [LCO 3.0.4 and SR 3.0.4] is not to be interpreted as endorsing the failure to exercise the good practice of restoring systems or components to operable status before entering an associated mode or other specified condition in the TS Applicability.

The modification also includes changes to the bases for [LCO 3.0.4 and SR 3.0.4] that provide details on how to implement the new requirements. The bases changes provide guidance for changing Modes or other specified conditions in the Applicability when an LCO is not met. The bases changes describe in detail how: [LCO 3.0.4.a] allows entry into a MODE or other specified condition in the Applicability with the LCO not met when the associated ACTIONS to be entered permit continued operation in the MODE or other specified condition in the Applicability for an unlimited period of time;

[LCO 3.0.4.b] allows entry into a MODE or other specified condition in the Applicability with the LCO not met after performance of a risk assessment addressing inoperable systems and components, consideration of the results, determination of the acceptability of entering the MODE or other specified condition in the Applicability, and establishment of risk management actions, if appropriate; and [LCO 3.0.4.c] allows entry into a MODE or other specified condition in the Applicability with the LCO not met

Enclosure to PLA-5764 Page 5 of 5 based on a Note in the Specification, which is typically applied to Specifications which describe values and parameters (e.g., [Containment Air Temperature, Containment Pressure, MCPR, Moderator Temperature Coefficient]), though it may be applied to other Specifications based on NRC plant-specific approval. The bases also state that any risk impact should be managed through the program in place to implement 10 CFR 50.65(a)(4) and its implementation guidance, NRC Regulatory Guide 1.182, "Assessing and Managing Risks Before Maintenance Activities at Nuclear Power Plants," and that the results of the risk assessment shall be considered in determining the acceptability of entering the MODE or other specified condition in the Applicability, and any corresponding risk management actions. In addition, the bases state that upon entry into a Mode or other specified condition in the Applicability with the LCO not met, LCO 3.0.1 and LCO 3.0.2 require entry into the applicable Conditions and Required Actions until the Condition is resolved, until the LCO is met, or until the unit is not within the Applicability of the Technical Specification. The bases also state that SR 3.0.4 does not restrict changing MODES or other specified conditions of the Applicability when a Surveillance has not been performed within the specified Frequency, provided the requirement to declare the LCO not met has been delayed in accordance with SR 3.0.3.

Finally, the PPL TS have a bases control program consistent with Section 5.5 of the STS, and the equivalent of STS SR 3.0.1 and associated bases.

4.0 ENVIRONMENTAL EVALUATION PPL Susquehanna, LLC (PPL) has reviewed the environmental evaluation included in the model safety evaluation dated April 4, 2003 as part of the CLIIP. PPL has concluded that the staff's findings presented in that evaluation are applicable to Susquehanna Units 1 and 2 and the evaluation is hereby incorporated by reference for this application.

5.0 REFERENCES

1. Technical Specifications Task Force (TSTF) Standard Technical Specifications Change Traveler TSTF-359, Revision 9, Increase Flexibility in MODE Restraints.

2. Federal Register, Volume 68, Number 65, Notice of Availability of Model Application Concerning Technical Specification Improvement To Modify Requirements Regarding Mode Change Limitations Using the Consolidated Line Item Improvement Process," dated April 4, 2003.

ATTACHMENT 1 to PLA-5764 Proposed Technical Specification Change (Mark-Up)

Unit 1 TS

Attachment 1 to PLA-5764 Page 1 of 2 LCO INSERT 1 (LCO 3.0.4)

When an LCO is not met, entry into a MODE or other specified condition in the Applicability shall only be made:

a. When the associated ACTIONS to be entered permit continued operation in the MODE or other specified condition in the Applicability for an unlimited period of time;

b. After performance of a risk assessment addressing inoperable systems and components, consideration of the results, determination of the acceptability of entering the MODE or other specified condition in the Applicability, and establishment of risk management actions, if appropriate; exceptions to this Specification are stated in the individual Specifications, or

c. When an allowance is stated in the individual value, parameter, or other Specification.

This Sp'ecification shall not prevent changes in MODES or other specified conditions in the Applicability that are required to comply with ACTIONS or that are part of a shutdown of the unit.

LCO INSERT 2 (SR 3.0.4)

Entry into a MODE or other specified condition in the Applicability of an LCO shall only be made when the LCO's Surveillances have been met within their specified Frequency, except as provided by SR 3.0.3. When an LCO is not met due to Surveillances not having been met, entry into a MODE or other specified condition in the Applicability shall only be made in accordance with LCO 3.0.4.

This provision shall not prevent entry into MODES or other specified conditions in the Applicability that are required to comply with ACTIONS or that are part of a shutdown of the unit.

LCO INSERT 3 (LCO 3.5.1, ECCS - OPERATING)

-NOTE-LCO 3.0.4.b is not --applicable to- ..HPCI.

Attachment 1 to PLA-5764 Page 2 of 2 LCO INSERT 4 (LCO 3.5.3, RCIC SYSTEM)

-NOTE-LCO 3.O.4.b is not applicable to RCIC.

LCO INSERT 5 (LCO 3.8.1, AC SOURCES - OPERATING)

-NOTE-LCO 3.0.4.b is not applicable to DGs.

PPL Rev. 0 LCO Applicability 3.0 3.0 LIMITING CONDITION FOR OPERATION (LCO) APPLICABILITY LCO 3.0.1 LCOs shall be met during the MODES or other specified conditions in the Applicability, except as provided in LCO 3.0.2 and LCO 3.0.7.

LCO 3.0.2 Upon discovery of a failure to meet an LCO, the Required Actions of the associated Conditions shall be met, except as provided in LCO 3.0.5 and LCO 3.0.6.

If the LCO is met or is no longer applicable prior to expiration of the specified Completion Time(s), completion of the Required Action(s) is not required, unless otherwise stated.

LCO 3.0.3 When an LCO is not met and the associated ACTIONS are not met, an associated ACTION is not provided, or if directed by the associated ACTIONS, the unit shall be placed in a MODE or other specified condition in which the LCO is not applicable. Action shall be initiated within 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months to place the unit, as applicable, in:

a. MODE 2 within 7 hours8.101852e-5 days 0.00194 hours 1.157407e-5 weeks 2.6635e-6 months ;

b. MODE 3 within 13 hours1.50463e-4 days 0.00361 hours 2.149471e-5 weeks 4.9465e-6 months ; and

c. MODE 4 within 37 hours4.282407e-4 days 0.0103 hours 6.117725e-5 weeks 1.40785e-5 months .

Exceptions to this Specification are stated in the individual Specifications.

Where corrective measures are completed that permit operation in accordance with the LCO or ACTIONS, completion of the actions required by LCO 3.0.3 Is not required.

LCO 3.0.3 is only applicable in MODES 1, 2, and 3.

LCO 3.0.4 7 Wher. en, 6C is met met, enr imt a MODE or o.the, spcfe eenditien in the Applieebility shall net be mode exeept when

.i-co the esseeieted ACTIGNS to be cred1~ permit co ti, tie oporotion in the MODE or cther speeified eenditier, in the

.Applircabilit:s fo-r min uniimited Deried of timc. This (continued)

SUSQUEHANNA - UNIT 1 3.0-1 Amendment 178

PPL Rev. 0 LCO Applicability 3.0 3.0 LCO APPLICABILITY LCO 3.0.4 Speeification Shall not prFvont changoc in MODES or othor Spocffiod (continued) cnditins ifn the Applisability that arc required to eevmply with ACTIONS or that arc part of a shutdew, ;f the it-.

Exeeptiens le this Speeifieatien ere sttetd imthe imdiviwuc Spccifications. These exceptions all6w entry inte MODES er other cthe specified sonditionc in the Applicability when eacieted ACTIONS to be ontorod allow unit opeoation in the MODE or othors cpocificd cendition in the Applicability only for a limited peried ef time Lce 8.0.4 is enly applieeble far entiy intc a MO-DE __ate eth v fiera condition in the Applicability in MODES 1, 2, and 3.

LCO 3.0.5 Equipment removed from service or declared inoperable to comply with ACTIONS may be returned to service under administrative control solely to perform testing required to demonstrate its OPERABILITY or the OPERABILITY of other equipment. This is an exception to LCO 3.0.2 for the system returned to service under administrative control to perform the testing required to demonstrate OPERABILITY.

LCO 3.0.6 When a supported system LCO is not met solely due to a support system LCO not being met, the Conditions and Required Actions associated with this supported system are not required to be entered.

Only the support system LCO ACTIONS are required to be entered.

This is an exception to LCO 3.0.2 for the supported system. In this event, an evaluation shall be performed in accordance with Specification 5.5.11, "Safety Function Determination Program (SFDP)." If a loss of safety function is determined to exist by this program, the appropriate Conditions and Required Actions of the LCO in which the loss of safety function exists are required to be entered. When a support system's Required Action directs a supported system to be declared inoperable or directs entry Into Conditions and Required Actions for a supported system, the (continued)

SUSQUEHANNA - UNIT 1 3.0-2 Amendment 178

PPL Rev. 0 SR Applicability 3.0 3.0 SR APPLICABILITY SR 3.0.3 dcclarcd not met, 2nd the app!i-C.ble Condifion(s) mkist be entered.

(continued)

SR 3.0.4 _t nEmtty into a MODE or other specified condition in the Applieobility-e-an LCO chall not bo madc unlceo thc LCO's Sur~cllwnise hovo boon LC o.-mot within their spco-fied Frequency. This provision sholl not prevent efipy- intil MO1DES er othef opeoofoe eenditio 43 it the Applieablltr-that erc required to comply with Actions or that are part f a SR 3.8.4 isonly epplieable for entry into a eMODE or other speeofied oendition in the Applicbility in MODEC 1,2, a nd 9.

SUSQUEHANNA - UNIT 1 3.0-5 Amendment 178

PPL Rev. 0 PAM Instrumentation 3.3.3.1 3.3 INSTRUMENTATION 3.3.3.1 Post Accident Momii'0iiiy (PAM) iosirumernt;on-LCO 3.3.3.1 The PAM instrumentation for each Function in Table 3.3.3.1-1 shall be OPERABLE.

APPLICABILITY: MODES I and 2.

ACTIONS

-NOTI'Ee-

1. LCO 3.0.npplicabl 4 c not e.

aSeparate Condition entry is allowed for each Function.

-~-

CONDITION REQUIRED ACTION COMPLETION TIME A. One or more A.1 Restore required channel to 30 days Functions with one OPERABLE status.

required channel inoperable.

B. Required Action and B.1 Initiate action in accordance with Immediately associated Specification 5.6.7.

Completion Time of Condition A not met.

C. One or more C.1 Restore one required channel to 7 days Functions with two OPERABLE status.

required channels inoperable.

(continued)

SUSQUEHANNA - UNIT I 3.3-23 Amendment 178

PPL Rev. 0 Remote Shutdown System 3.3.3.2 3.3 INSTRUMENTATION 3.3.3.2 Remott Sh0utdowrn System LCO 3.3.3.2 The Remote Shutdown System Function in Table 3.3.3.2-1 shall be OPERABLE.

APPLICABILITY: MODES I and 2.

ACTIONS KI,f Tlr-f IN'.I I

1. LCO .0.1 i: not Op-^'-lcbe.

-,. Separate Condition entry is allowed for each Function.

CONDITION REQUIRED ACTION COMPLETION TIME A. One or more required A.1 Restore required Function to 30 days Functions inoperable. OPERABLE status.

B. Required Action and B.1 Be in MODE 3. 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months associated Completion Time not met.

SUSQUEHANNA - UNIT I 3.3-26 Amendment 178

PPL Rev. 0 RCS Leakage Detection Instrumentation 3.4.6 3.4 REACTOR COOLANT SYSTEM (RCS) 3.4.6- -P!S Leakage Detection Instrumentation -_ 5, LCO 3.4.6 The following RCS leakage detection instrumentation shall be OPERABLE:

a. Drywell floor drain sump monitoring system; and

b. One channel of either primary containment atmospheric particulate or atmospheric gaseous monitoring system.

APPLICABILITY: MODES I and 2, and 3.

ACTIONS CONDITION REQUIRED ACTION COMPLETION TIME A. Drywell floor drain NO sump monitoring (CO >0A Isn4tappKcb!

system inoperable.

A.1 Restore drywell floor 30 days drain sump monitoring system to OPERABLE status.

(continued)

SUSQUEHANNA - UNIT I 3.4-14 Amendment 178

PPL Rev. 0 RCS Leakage Detection Instrumentation 3.4.6 ACTIONS (continued)

CONDIl ION REQUIRED ACTON --COMPLET!ON TIME B. Required primary NOT containment 3;Q4is nt-eaple./

atmospheric monitoring ---

system inoperable.

B.1 Analyze grab samples Once per of primary containment 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months atmosphere.

AND B.2 Restore required 30 days primary containment atmospheric monitoring system to OPERABLE status.

C. Required Action and C.1 Be in MODE 3. 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months associated Completion Time of Condition A or AND B not met.

C.2 Be in MODE 4. 36 hours4.166667e-4 days 0.01 hours 5.952381e-5 weeks 1.3698e-5 months D. All required leakage D.1 Enter LCO 3.0.3. Immediately detection systems inoperable.

SUSQUEHANNA - UNIT 1 3.4-1 5 Amendment 178

PPL Rev.0 RCS Specific Activity 3.4.7 3A REACTOR COOLANT SYSTEM (RCS) 3A.R=- S e-w.5 andht I .

LCO 3.4.7 The specific activity of the reactor coolant shall be limited to DOSE EQUIVALENT 1-131 specific activity 0.2 pCL'gm.

APPLICABILITY: Mode 1, MODES 2 and 3 with any main steam line not isolated.

ACTIONS CONDITION REQUIRED ACTION COMPLETION TIME A. Reactor coolant ., NOTE -_

specific activity LCO 3.04iEs axt applicable.

> 0.2 pCigm and

< 4.0 pCi/gm DOSE EQUIVALENT 1-131. A.1 Determine DOSE Once per 4 hours4.62963e-5 days 0.00111 hours 6.613757e-6 weeks 1.522e-6 months EQUIVALENT 1-131 AND A.2 Restore DOSE 48 hours5.555556e-4 days 0.0133 hours 7.936508e-5 weeks 1.8264e-5 months EQUIVALENT 1-131 to within limits.

B. Required Action and B.1 Determine DOSE Once per 4 hours4.62963e-5 days 0.00111 hours 6.613757e-6 weeks 1.522e-6 months associated Completion EQUIVALENT 1-131.

Time of Condition A not met. AND OR 8.2.1 Isolate all main steam 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months Reactor Coolant lines.

specific activity > 4.0 OR pCi/gm Dose EQUIVALENT 1-131.

(continued)

SUSQUEHANNA- UNIT 1 3.4-17 Amendment 178

PPL Rev. 0 RHR Shutdown Cooling System - Hot Shutdown 3.4.8 3.4 REACTOR COOLANT SYSTEM (RCS) 3.4.8 Residual Heat Removal (RHR) Shutdown Cooling Systernmlqlot ShiduivTe - -

LCO 3.4.8 Two RHR shutdown cooling subsystems shall be OPERABLE, and, with no recirculation pump in operation, at least one RHR shutdown cooling subsystem shall be in operation.

NOTES

1. Both RHR shutdown cooling subsystems and recirculation pumps may be removed from operation for up to 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months per 8 hour9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months period.

2. One RHR shutdown cooling subsystem may be inoperable for up to 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months for the performance of Surveillances.

APPLICABILITY: Mode 3, with reactor steam dome pressure less than the RHR cut in permissive pressure.

ACTIONS

r. LCGO 3.0.4 ismet ppl.-

-4.-Separate Condition entry is allowed for each RHR shutdown cooling subsystem.

CONDITION REQUIRED ACTION COMPLETION TIME A. One or two required A.1 Initiate action to restore Immediately RHR shutdown cooling RHR shutdown cooling subsystems subsystem(s) to inoperable. OPERABLE status.

AND (contnued)

SUSQUEHANNA- UNIT I 3.4-19 Amendment 178

PPL Rev. 0 ECCS - Operating 3.5.1 3.5 EMERGENCY CORE COOLING SYSTEMS (ECCS) AND REACTOR CORE ISOLATION COOLING (RCIC) SYSTEM..

3.5.1 ECCS-Operating LCO 3.5.1 Each ECCS injection/spray subsystem and the Automatic Depressurization System (ADS) function of six safety/relief valves shall be OPERABLE.

APPLICABILITY: MODE 1, MODES 2 and 3, except high pressure coolant injection (HPCI) and ADS valves are not required to be OPERABLE with reactor steam dome pressure

150 psig.

LCO --

ACTIONS _

CONDITION REQUIRED ACTION COMPLETION TIME A. One low pressure ECCS A.1 Restore low pressure ECCS 7 days injection/spray subsystem injection/spray subsystem to inoperable for reasons other OPERABLE status.

than Condition B.

B. One LPCI pump in one or B.1 Restore LPCI pump(s) to 7 days both LPCI subsystems OPERABLE status.

inoperable.

C. Required Action and C.1 Be in MODE 3. 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months associated Completion Time of Condition A or Condition B AND not met C.2 Be in MODE 4. 36 hours4.166667e-4 days 0.01 hours 5.952381e-5 weeks 1.3698e-5 months (continued)

SUSQUEHANNA - UNIT I 3.5-1 Amendment 178

PPL Rev. 0 RCIC System 3.5.3 3.5 EMERGENCY CORE COOLING SYSTEMS (ECCS) AND REACTOR COME ISOLA IO N cO3LNG (1% .CIC) SYSTEM -

3.5.3 RCIC System LCO 3.5.3 The RCIC System shall be OPERABLE.

APPLICABILITY: MODE 1, MODES 2 and 3 with reactor steam dome pressure > 150 psig.

ILCDO ACTIONS CONDITION REQUIRED ACTION COMPLETION TIME A. RCIC System inoperable. A.1 Verify by administrative means Immediately High Pressure Coolant Injection System is OPERABLE.

AND A.2 Restore RCIC System to 14 days OPERABLE status B. Required Action and B.1 Be in MODE 3. 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months associated Completion Time not met.

AND B.2 Reduce reactor steam dome 36 hours4.166667e-4 days 0.01 hours 5.952381e-5 weeks 1.3698e-5 months pressure to < 150 psig.

SUSQUEHANNA- UNIT 1 3.5-122 Amendment 178

PPL Rev. 0 Primary Containment Hydrogen Recombiners 3.6.3.1 3.6 CONTAINMENT SYSTEMS

~~~. ....F*

3.6.3.1 Primary Containment Hydrogen Recombiners LCO 3.6.3.1 Two drywell and two suppression chamber hydrogen recombiners shall be OPERABLE.

APPLICABILITY: MODES 1 and 2.

ACTIONS CONDITION REQUIRED ACTION COMPLETION TIME A. One drywell or one A.1 Kir c suppression chamber 4app bIe/

bGO7i4is hydrogen recombiner __,

Inoperable Restore the Inoperable 30 days OR hydrogen recombiners to OPERABLE status.

One drywell and one suppression chamber hydrogen recombiner Inoperable.

B. Two'drywell or two 8.1 Verify by administrative means 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months suppression chamber that the alternate hydrogen hydrogen recombiners control function Is maintained. AND Inoperable.

Once per 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months OR thereafter AND Any three or more hydrogen recombiners Inoperable. B.2 Restore recombiners to ensure 7 days that at least one drywell and one suppression chamber hydrogen recombiner are OPERABLE.

SUSQUEHANNA- UNIT I 3.6-30 Amendment 178

PPL Rev. 0 Drywell Air Flow System 3.6.3.2 3.6 CONTAINMENT SYSTEMS 3.6.32 Drywell Air Flow System LCO 3.6.3.2 Three required drywell cooling fan pairs shall be OPERABLE.

APPLICABILITY: MODES 1and 2.

ACTIONS CONDITION REQUIRED ACTION COMPLETION TIME A. One required drywell cooling A.1 OTE fan In one or more pairs inoperable.

Restore required drywell 30 days cooling fan to OPERABLE status.

B. Two required drywell cooling B.1 Verify by administrative means 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months fans in one or more pairs that the alternate hydrogen inoperable. control function Is maintained. AND Once per 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months AND thereafter B.2 Restore one required drywell 7 days cooling fan in each required pair to OPERABLE status.

C. Required Action and C.1 Be in MODE 3. 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months Associated Completion Time not met.

SUSQUEHANNA - UNIT I 3.6-32 Amendment 178

PPL Rev. 1 AC Sources - Operating 3.8.1 3.8 Electrical Power Systems 3.8.1 AC Sources-Operating- - --

LCO 3.8.1 The following AC electrical power sources shall be OPERABLE:

a. Two qualified circuits between the offsite transmission network and the onsite Class 1E AC Electrical Power Distribution System; and

b. Four diesel generators (DGs).

APPLICABILITY: MODES 1, 2, and 3.

ACTIONS :Cpsetts Ks rs PJL- I r7 When an OPERABLE diesel generator is placed in an inoperable status solely for the purpose of alignment of DG E to or from the Class 1E distribution system, entry into associated Conditions and Required Actions may be delayed for up to 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months , provided both offsite circuits are OPERABLE and capable of supplying the affected 4.16 kV ESS Bus.

CONDITION REQUIRED ACTION COMPLETION lIME A One offsite circuit A.1 Perform SR 3.8.1.1 for 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months inoperable. OPERABLE offsite circuit.

AND Once per 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months thereafter AND A.2 Declare required feature(s) with 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months from discovery no offsite power available of no offsite power to one inoperable when the redundant 4.16 kV ESS bus required feature(s) are inoperable. concurrent with inoperability of redundant required feature(s).

AND (continued)

SUSQUEHANNA - UNIT I 3.8-1 Amendment 178

Unit 2 TS

Attachment 1 to PLA-5764 Page 1 of 2 LCO INSERT 1 (LCO 3.0.4)

When an LCO is not met, entry into a MODE or other specified condition in the Applicability shall only be made:

a. When the associated ACTIONS to be entered permit continued operation in the MODE or other specified condition in the Applicability for an unlimited period of time;

b. After performance of a risk assessment addressing inoperable systems and components, consideration of the results, determination of the acceptability of entering the MODE or other specified condition in the Applicability, and establishment of risk management actions, if-appropriate; exceptions to this Specification are stated in the individual Specifications, or

c. When an allowance is stated in the individual value, parameter, or other Specification.

This Specification shall not prevent changes in MODES or other specified conditions in the Applicability that are required to comply with ACTIONS or that are part of a shutdown of the unit.

LCO INSERT 2 (SR 3.0.4)

Entry into a MODE or other specified condition in the Applicability of an LCO shall only be made when the LCO's Surveillances have been met within their specified Frequency, except as provided by SR 3.0.3. When an LCO is not met due to Surveillances not having been met, entry into a MODE or other specified condition in the Applicability shall only be made in accordance with LCO 3.0.4.

This provision shall not prevent entry into MODES or other specified conditions in the Applicability that are required to comply with ACTIONS or that are part of a shutdown of the unit.

LCO INSERT 3 (LCO 3.5.1, ECCS - OPERATING)

-NOTE-LCO 3.0.4.b is...

not applicable to HPCI.

. . . Z - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Attachment 1 to PLA-5764 Page 2 of 2 LCO INSERT 4 (LCO 3.5.3, RCIC SYSTEM)

-NOTE-is not applicable to RCIC.

LCO 3.0.4.b............................................................ ................... .. .. ... .....

LCO INSERT 5 (LCO 3.8.1, AC SOURCES - OPERATING)

-NOTE-LCO 3.0.4.b is: not applicable to DGs.

PPL Rev. 0 LCO Applicability 3.0 3.0 LIMITING CONDITIONS FOR.OPERATION (LCO) APPLICABILITY LCO 3.0.1 LCOs shall be met during the MODES or other specified conditions in the Applicability, except as provided in LCO 3.0.2 and LCO 3.0.7.

LCO 3.0.2 Upon discovery of a failure to meet an LCO, the Required Actions of the associated Conditions shall be met, except as provided in LCO 3.0.5 and LCO 3.0.6.

If the LCO is met or is no longer applicable prior to expiration of the specified Completion Time(s), completion of the Required Action(s) is not required, unless otherwise stated.

LCO 3.0.3 When an LCO is not met and the associated ACTIONS are not met, an associated ACTION is not provided, or if directed by the associated ACTIONS, the unit shall be placed in a MODE or other specified condition in which the LCO is not applicable. Action shall be initiated within 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months to place the unit, as applicable, in:

a. MODE 2 within 7 hours8.101852e-5 days 0.00194 hours 1.157407e-5 weeks 2.6635e-6 months ;

b. MODE 3 within 13 hours1.50463e-4 days 0.00361 hours 2.149471e-5 weeks 4.9465e-6 months ; and

c. MODE 4 within 37 hours4.282407e-4 days 0.0103 hours 6.117725e-5 weeks 1.40785e-5 months .

Exceptions to this Specification are stated in the individual Specifications.

Where corrective measures are completed that permit operation in accordance with the LCO or ACTIONS, completion of the actions required by LCO 3.0.3 is not required.

LCO 3.0.3 is only applicable in MODES 1, 2, and 3.

LCO 3.0.4 Whe an,LCO is not met, entryinto a MODE or ther specified con____ iditiomin the Applic a b ility shall not be ., lade except hevl tIe, LOCG0 asociated ACTIONS to be entered pemit continuted 1 opeta t ion thie MeEODE o, hel specified wo diti ;,,Itl. Applicbility fui di j Ui ,,ited perid of t; ...e. This-(continued)

NT2301 SUSQUEHANN - mnmn 5 SUSQUEHANNA - UNIT 2 3.0-1 Amendment 151

PPL Rev. 0 LCO Applicability 3.0 3.0 LCO APPLICABILITY LCO 3.0.4 Specification shell tot prevent changes in MODEC or other specified (continued) eenditiens in the Applieeity the! are require. to comply with Aef~lEl3 oid Fat dl e pad t of d al ulduvv I usf ll l u,Ill.

Exceptions to this Spc~ifi ativil are ;tated ii, thel individtal Spceifieetiens.. These exceptions allowv entr into r1ODBE or other e1 AestaIO be _,e_d MI .... _.0tio

_ the MODm E or ethe_r cpecified condition in the Applieebility enly fOr a limite perid bft iet.

LCO 3.0.4 is oll ,l applicable 1f 5dnjy ;inl a MEODE l, othe; 4ys;eife eenditien in the Appliebility i MOES 1,2, a S.

LCO 3.0.5 Equipment removed from service or declared inoperable to comply with ACTIONS may be returned to service under administrative control solely to perform testing required to demonstrate Its OPERABILITY or the OPERABILITY of other equipment. This is an exception to LCO 3.0.2 for the system returned to service under administrative control to perform the testing required to demonstrate OPERABILITY.

LCO 3.0.6 When a supported system LCO is not met solely due to a support system LCO not being met, the Conditions and Required Actions associated with this supported system are not required to be entered.

Only the support system LCO ACTIONS are required to be entered.

This is an exception to LCO 3.0.2 for the supported system. In this event, an evaluation shall be performed in accordance with Specification 5.5.11, "Safety Function Determination Program (SFDP)." If a loss of safety function is determined to exist by this program, the appropriate Conditions and Required Actions of the LCO in which the loss of safety function exists'are required to be entered. When a support system's Required Action directs a supported system to be declared inoperable or directs entry into Conditions and Required Actions for a supported system, the applicable (continued)

SUSQUEHANNA - UNIT 2 3.0-2 Amendment 151

PPL Rev. 0 SR Applicability 3.0 3.0 SR APPLICABILITY SR 3.0.3 declared not met, and the applicable Condition(s) must be entered.

(continued)

SR 3.0.4 t ta- MODE er ether apecfleJ eemtfr, mthe Appirjt, e

-P ICO shall not ba mado u to Anc Ith Ce'cSi-:RillnRc hx - booR me--t within thoir cpocG4iod Froguoncy. Thiz provioion chall not prfvont enry into MODe or othefr speeifid eendii.e in.the Appl,,,iabty r aereue to co l with Action or that are pert ef a t! ~init hutdowno, cf the unit.

611 3.0.4 is only-applieLble for entry into a ME lher specified o eODt

- cnditiorn im the Applie!ty v in MODEC 1 2, cnd S.

SUSQUEHANNA - UNIT 2 3.0-5 Amendment 151

PPL Rev. 0 PAM Instrumentation 3.3.3.1 3.3 INSTRLUMENTATION 3.3.3.1 Post Accident Monitoring (PAM) Instrumentation LCO 3.3.3.1 The PAM instrumentation for each Function in Table 3.3.3.1-1 shall be OPERABLE.

APPLICABILITY: MODES 1 and 2.

ACTIONS Pd4 am

1. LC, 3.0.4 is, ct BpplcVable. Separate Condition entry is allowed for each Function.

CONDITION REQUIRED ACTION COMPLETION TIME A. One or more Functions A.1 Restore required channel to 30 days with one required OPERABLE status.

channel inoperable.

B. Required Action and B.1 Initiate action in accordance with Immediately associated Completion Specification 5.6.7.

Time of Condition A not met.

C. One or more Functions C.1 Restore one required channel to 7 days with two required OPERABLE status.

channels inoperable.

(continued)

SUSQUEHANNA - UNIT 2 3.3-23 Amendment 151

PPL Rev. 0 Remote Shutdown System 3.3.3.2 3.3 INSTRUMENTATION.

3.3.3.2 Remote Shutdown System LCO 3.3.3.2 The Remote Shutdown System Function in Table 3.3.3.2-1 shall be OPERABLE.

APPLICABILITY: MODES I and 2.

ACTIONS

-NOTE/- _ _ _ _ . .

4. ILOC eet

.0.4 is eo elieeble.

-- Separate Condition entry is allowed for each Function.

CONDITION REQUIRED ACTION COMPLETION TIME A. One or more A.1 Restore required Function to 30 days required Functions OPERABLE status.

inoperable.

B. Required Action and B.1 Be in MODE 3. 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months associated Completion Time not met.

SUSQUEHANNA - UNIT 2 3.3-27 Amendment 151

PPL Rev. 0 RCS Leakage Detection Instrumentation 3.4.6 3.4 REACTOR COOLANT SYSTEM (RCS) 34.-.6 RCS Leakage Detection Instrumentation LCO 3.4.6 The following RCS leakage detection instrumentation shall be OPERABLE:

a. Drywell floor drain sump monitoring system; and

b. One channel of either primary containment atmospheric particulate or atmospheric gaseous monitoring system.

APPLICABILITY: MODES 1 and 2.and 3.

ACTIONS CONDITION REQUIRED ACTION COMPLETION TIME A. Drywell floor drain N( E sump monitoring LCp.0.4 not a cable.

system inoperable. - -----

A.1 Restore drywell floor 30 days drain sump monitoring system to OPERABLE status.

(continued)

SUSQUEHANNA - UNIT 2 3.4-14 Amendment 151

PPL Rev. 0 RCS Leakage Detection Instrumentation 3.4.6 ACTIONS (continued)

CONDITION REQUIRED ACTION COMPLETION TIME B. Required primary NO 7t containment O Xt pp atmospheric monitoring _______

system inoperable.

B.1 Analyze grab samples Once per of primary containment 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months atmosphere.

AND B.2 Restore required 30 days primary containment atmospheric monitoring system to OPERABLE status.

C. Required Action and 0.1 Be in MODE 3. 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months associated Completion Time of Condition A or AND B not met.

C.2 Be in MODE 4. 36 hours4.166667e-4 days 0.01 hours 5.952381e-5 weeks 1.3698e-5 months D. All required leakage D.1 Enter LCO 3.0.3. Immediately detection systems inoperable.

SUSQUEHANNA- UNIT 1 3.4-15 Amendment 151

PPL Rev. 0 RCS Specific Activity 3.4.7 3.4 REACTOR COOLANT SYSTEM (RCS) 3.4.7 RCS Specific Activity LCO 3.4.7 The specific activity of the reactor coolant shall be limited to DOSE EQUIVALENT 1-131 specific activity S 0.2 pCi/gm.

APPLICABILITY: Mode 1, MODES 2 and 3 with any main steam line not isolated.

ACTIONS CONDITION REQUIRED ACTION COMPLETION TIME A. Reactor coolant specific NOTE activity > 0.2 pCi/gm and LCO 3.0.4 s not applicable.

< 4.0 pCi/gm DOSE EQUIVALENT 1-131.

A.1 Determine DOSE Once per 4 hours4.62963e-5 days 0.00111 hours 6.613757e-6 weeks 1.522e-6 months EQUIVALENT 1-131 AND A.2 Restore DOSE EQUIVALENT 48 hours5.555556e-4 days 0.0133 hours 7.936508e-5 weeks 1.8264e-5 months 1-131 to within limits.

B. Required Action and B.1 Determine DOSE Once per 4 hours4.62963e-5 days 0.00111 hours 6.613757e-6 weeks 1.522e-6 months associated Completion EQUIVALENT 1-131.

Time of Condition A not met. AND OR B.2.1 Isolate all main steam lines. 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months Reactor Coolant specific OR activity > 4.0 pCi/gm Dose EQUIVALENT 1-131.

(continued)

SUSQUEHANNA - UNIT 2 3.4-17 Amendment 151

PPL Rev. 0 RHR Shutdown Cooling System - Hot Shutdown 3.4.8 3.4 REACTOR COOLANT SYSTEM (RCS) 3.4.8 Residual Heat Removal (RHR) Shutdown Cooling System-Hot Shutdown LCO 3.4.8 Two RHR shutdown cooling subsystems shall be OPERABLE, and, with no recirculation pump in operation, at least one RHR shutdown cooling subsystem shall be in operation.

_ InTc I UJ I _--v-

1. Both RHR shutdown cooling subsystems and recirculation pumps may be removed from operation for up to 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months per 8 hour9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months period.

2. One RHR shutdown cooling subsystem may be inoperable for up to 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months for the performance of Surveillances.

APPLICABILITY: Mode 3, with reactor steam dome pressure less than the RHR cut in permissive pressure.

ACTIONS

-Nt to -- ---- _____

1. LCO 3.0.4Appl*iele.

is nont

-2 Separate Condition entry is allowed for each RHR shutdown cooling subsystem.

CONDITION REQUIRED ACTION COMPLETION TIME A. One or two required A.1 Initiate action to restore Immediately RHR shutdown cooling RHR shutdown cooling subsystems subsystem(s) to inoperable. OPERABLE status.

AND (continued)

SUSQUEHANNA - UNIT 2 3.4-19 Amendment 151

PPL Rev. 0 ECCS - Operating 3.5.1

.- . 3.5 EMERGENCY CORE COOLING SYSTEMS (ECCS) AND REACTOR CORE ISOLATION COOLING (RCIC) SYSTEM 3.5.1 ECCS-Operating LCO 3.5.1 Each ECCS injection/spray subsystem and the Automatic Depressurization System (ADS) function of six safety/relief valves shall be OPERABLE.

APPLICABILITY: MODE 1, MODES 2 and 3, except high pressure coolant injection (HPCI) and ADS valves are not required to be OPERABLE with reactor steam dome

. LZo pressure

150 psig.

ACTIONS S-____

CONDITION REQUIRED ACTION COMPLETION TIME A. One low pressure ECCS A.1 Restore low pressure ECCS 7 days injection/spray subsystem injection/spray subsystem to inoperable for reasons other OPERABLE status.

than Condition B.

B. One LPCI pump in one or B.1 Restore LPCI pump(s) to 7 days both LPCI subsystems OPERABLE status.

inoperable.

C. Required Action and C.1 Be in MODE 3. 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months associated Completion Time of Condition A or Condition B AND not met.

C.2 Be in MODE 4. 36 hours4.166667e-4 days 0.01 hours 5.952381e-5 weeks 1.3698e-5 months (continued)

SUSQUEHANNA - UNIT 2 3.5-1 Amendment 151

PPL Rev. 0 RCIC System 3.5.3 3.5 EMERGENCY CORE COOLING SYSTEMS (ECCS) AND REACTOR CORE ISOLATION COOLING (RCIC) SYSTEM 3.5.3 RCIC System LCO 3.5.3 The RCIC System shall be OPERABLE.

APPLICABILITY: MODE 1, MODES 2 and 3 with reactor steam dome pressure > 150 psig.

ACTIONSS CONDITION REQUIRED ACTION COMPLETION TIME A. RCIC System inoperable. A.1 Verify by administrative means Immediately High Pressure Coolant Injection System is OPERABLE.

AND A.2 Restore RCIC System to 14 days OPERABLE status B. Required Action and B.1 Be in MODE 3. 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months associated Completion Time not met.

AND B.2 Reduce reactor steam dome 36 hours4.166667e-4 days 0.01 hours 5.952381e-5 weeks 1.3698e-5 months pressure to < 150 psig.

SUSQUEHANNA - UNIT 2 3.5-1 2 Amendment 151

PPL Rev. 0 Primary Containment Hydrogen Recombiners 3.6.3.1 3.6 CONTAINMENT SYSTEMS 3.6.3.1 Primary Containment Hydrogen Recombiners LCO 3.6.3.1 Two drywell and two suppression chamber hydrogen recombiners shall be OPERABLE.

APPLICABILITY: MODES 1and 2.

ACTIONS CONDITION REQUIRED ACTION COMPLETION TIME A. One drywell or one A OT suppression chamber is nappli ie.-

hydrogen recombiner __ _ _ , __ _ _ _ _ __ _ _ _ _

inoperable Restore the inoperable 30 days OR hydrogen recombiners to OPERABLE status.

One drywell and one suppression chamber hydrogen recombiner inoperable.

B. Two drywell or two B.1 Verify by administrative means 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months suppression chamber that the alternate hydrogen hydrogen recombiners control function is maintained. AND inoperable.

Once per 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months OR thereafter AND Any three or more hydrogen recombiners inoperable. B.2 Restore recombiners to ensure 7 days that at least one drywell and one suppression chamber hydrogen recombiner are OPERABLE.

(continued)

SUSQUEHANNA - UNIT 2 3.6-30 Amendment 151

PPL Rev. 0 Drywell Air Flow System 3.6.3.2 3.6 CONTAINMENT SYSTEMS 3.6.3.2 Drywell Air Flow System LCO 3.6.3.2 Three required drywell cooling fan pairs shall be OPERABLE.

APPLICABILITY: MODES I and 2.

ACTIONS CONDITION REQUIRED ACTION COMPLETION TIME A. One required drywell cooling A.1/- TE fan in one or more pairs 3.0 is no ppl le.

inoperable.

Restore required drywell 30 days cooling fan to OPERABLE status.

B. Two required drywell cooling B.1 Verify by administrative means 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months fans in one or more pairs that the alternate hydrogen inoperable. control function is maintained. AND Once per 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months AND thereafter B.2 Restore one required drywell 7 days cooling fan in each required pair to OPERABLE status.

C. Required Action and C.1 Be in MODE 3. 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months Associated Completion Time not met.

SUSQUEHANNA - UNIT 2 3.6-32 Amendment 151

PPL Rev. 1 AC Sources-Operating 3.8.1 3.8 ELECTRICAL POWER SYSTEMS 3.8.1 AC Sources-Operating LCO 3.8.1 The following AC electrical power sources shall be OPERABLE:

a. Two qualified circuits between the offsite transmission network and the onsite Class 1E AC Electrical Power Distribution System; and

b. Four diesel generators (DGs).

c. Two qualified circuits between the offsite transmission network and the Unit 1 onsite Class 1E AC electrical power distribution subsystem(s) required by LCO 3.8.7, Distribution Systems - Operating; and

d. The DG(s) capable of supplying the Unit I onsite Class 1E electrical power distribution subsystem(s) required by LCO 3.8.7.

APPLICABILITY: MODES 1, 2, and 3.

ACTIO

NSI KU

- IN OTE.

When an OPERABLE diesel generator is placed in an inoperable status solely for the purpose of alignment of DG E to or from the Class 1E distribution system, entry into associated Conditions and Required Actions may be delayed for up to 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months , provided both offsite circuits are OPERABLE and capable of supplying the affected 4.16 kV ESS Bus.

CONDITION REQUIRED ACTION COMPLETION TIME

_lPromS ... o A One offsite circuit Al1 Performn SR 3.8.1.1 for 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months inoperable. OPERABLE offsite circuit.

AND Once per 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months AND thereafter (continued)

SUSQUEHANNA - UNIT 2 Amendment 151

ATTACHMENT 2 to PLA-5764 Changes to Technical Specification Bases

.I Unit 1 TS Bases

Attachment 3 to PLA-5764 Page 1 of 5 BASES INSERT 1 (LCO 3.0.4 BASES)

LCO 3.0.4 establishes limitations on changes in Mf ODES or other specified conditions in the Applicability when an LCO is not met. It allows placing the unit in a MODE or other specified condition stated in that Applicability (e.g., the Applicability desired to be entered) when unit conditions are such that the requirements of the LCO would not be met, in accordance with LCO 3.0.4.a, LCO 3.0.4.b, or LCO 3.0.4.c.

LCO 3.0.4.a allows entry into a MODE or other specified condition in the Applicability with the LCO not met when the associated ACTIONS to be entered permit continued operation in the MODE or other specified condition in the Applicability for an unlimited period of time. Compliance with Required Actions that permit continued operation of the unit for an unlimited period of time in a MODE or other specified condition provides an acceptable level of safety for continued operation. This is without regard to the status of the unit before or after the MODE change. Therefore, in such cases, entry into a MODE or other specified condition in the Applicability may be made in accordance with the provisions of the Required Actions.

LCO 3.0.4.b allows entry into a MODE or other specified condition in the Applicability with the LCO not met after performance of a risk assessment addressing inoperable systems and components, consideration of the results, determination of the acceptability of entering the MODE or other specified condition in the Applicability, and establishment of risk management actions, if appropriate.

The risk assessment may use quantitative, qualitative, or blended approaches, and the risk assessment will be conducted using the plant program, procedures, and criteria in place to implement 10 CFR 50.65(a)(4), which requires that risk impacts of maintenance activities to be assessed and managed. The risk assessment, for the purposes of LCO 3.0.4 (b),

must take into account all inoperable Technical Specification equipment regardless of whether the equipment is included in the normal 10 CFR 50.65(a)(4) risk assessment scope. The risk assessments will be conducted using the procedures and guidance endorsed by Regulatory Guide 1.182, "Assessing and Managing Risk Before Maintenance Activities at Nuclear Power Plants." Regulatory Guide 1.182 endorses the guidance in Section 11 of NUMARC 93-01, "Industry Guideline for Monitoring the Effectiveness of Maintenance at Nuclear Power Plants." These documents address general guidance for conduct of the risk assessment, quantitative and qualitative guidelines for establishing risk management actions, and example risk management actions. These include actions to plan and conduct other activities in a manner that controls overall risk, increased risk awareness by shift and management personnel, actions to reduce the duration of the condition, actions to minimize the magnitude of risk increases (establishment of backup success paths or compensatory measures), and

Attachment 3 to PLA-5764 Page 2 of 5 determination that the proposed MODE change is acceptable. Consideration should also be given to the probability of completing restoration such that the requirements of the LCO would be met prior to the expiration of ACTIONS Completion Times that would require exiting the Applicability.

LCO 3.0.4.b may be used with single, or multiple systems and components unavailable.

NUMARC 93-01 provides guidance relative to consideration of simultaneous unavailability of multiple systems and components.

The results of the.risk assessment shall be considered in determining the acceptability of entering the MODE or other specified condition in the Applicability, and any corresponding risk management actions. The LCO 3.0.4.b risk assessments do not have to be documented.

The Technical Specifications allow continued operation with equipment unavailable in MODE 1 for the duration of the Completion Time. Since this is allowable, and since in general the risk impact in that particular MODE bounds the risk of transitioning into and through the applicable MODES or other specified conditions in the Applicability of the LCO, the use of the LCO 3.0.4.b allowance should be generally acceptable, as long as the risk is assessed and managed as stated above. However, there is a small subset of systems and components that have been determined to be more important to risk and use of the LCO 3.0.4.b allowance is prohibited. The LCOs governing these system and components contain Notes prohibiting the use of LCO 3.0.4.b by stating that LCO 3.0.4.b is not applicable.

LCO 3.0.4.c allows entry into a MODE or other specified condition in the Applicability with the LCO not met based on a Note in the Specification which states LCO 3.0.4.c is applicable. These specific allowances permit entry into MODES or other specified conditions in the Applicability when the associated ACTIONS to be entered do not provide for continued operation for an unlimited period of time and a risk assessment has not been performed. This allowance may apply to all the ACTIONS or to a specific Required Action of a Specification. The risk assessments performed to justify the use of LCO 3.0.4.b usually only consider systems and components. For this reason, LCO 3.0.4.c is typically applied to Specifications which describe values and parameters (e.g., [Containment Air Temperature, Containment Pressure, MCPR, Moderator Temperature Coefficient]), and may be applied to other Specifications based on NRC plant-specific approval.

The provisions of this Specification should not be interpreted as endorsing the failure to exercise the good practice of restoring systems or components to OPERABLE status before entering an associated MODE or other specified condition in the Applicability.

Attachment 3 to PLA-5764 Page 3 of 5 The provisions of LCO 3.0.4 shall not prevent changes in MODES or other specified conditions in the Applicability that are required to comply with ACTIONS. In addition, the provisions of LCO 3.0.4 shall not prevent changes in MODES or other specified

_conditions in the Applicability that result from any unit shutdown. In this context, a unit shutdown is defined as a change in MODE or other specified condition in the Applicability associated with transitioning from MODE 1 to MODE 2 or MODE 3, MODE 2 to MODE 3, and MODE 3 to MODE 4.

Upon entry into a MODE or other specified condition in the Applicability with the LCO not met, LCO 3.0.1 and LCO 3.0.2 require entry into the applicable Conditions and Required Actions until the Condition is resolved, until the LCO is met, or until the unit is not within the Applicability of the Technical Specification.

Surveillances do not have to be performed on the associated inoperable equipment (or on variables outside the specified limits), as permitted by SR 3.0.1. Therefore, utilizing LCO 3.0.4 is not a violation of SR 3.0.1 or SR 3.0.4 for any Surveillances that have not been performed on inoperable equipment. However, SRs must be met to ensure OPERABILITY prior to declaring the associated equipment OPERABLE (or variable within limits) and restoring compliance with the affected LCO.

BASES INSERT 2 (SR 3.0.4 BASES)

SR 3.0.4 establishes the requirement that all applicable SRs must be met before entry into a MODE or other specified condition in the Applicability.

This Specification ensures that system and component OPERABILITY requirements and variable limits are met before entry into MODES or other specified conditions in the Applicability for which these systems and components ensure safe operation of the unit.

The provisions of this Specification should not be interpreted as endorsing the failure to exercise the good practice of restoring systems or components to OPERABLE status before entering an associated MODE or other specified condition in the Applicability.

A provision is included to allow entry into a MODE or other specified condition in the Applicability when an LCO is not met due to Surveillance not being met in accordance with LCO 3.0.4.

However, in certain circumstances, failing to meet an SR will not result in SR 3.0.4 restricting a MODE change or other specified condition change. When a system, subsystem, division, component, device, or variable is inoperable or outside its specified limits, the associated SR(s) are not required to be performed, per SR 3.0.1, which states that surveillances do not have to be performed on inoperable equipment. When equipment is inoperable, SR 3.0.4 does not apply to the associated SR(s) since the

Attachment 3 to PLA-5764 Page 4 of 5 requirement for the SR(s) to be performed is removed. Therefore, failing to perform the Surveillance(s) within the specified Frequency does not result in an SR 3.0.4 restriction to changing MODES or other specified conditions of the Applicability. However, since the LCO is not met in this instance, LCO 3.0.4 will govern any restriction's that may (or may not) apply to MODE or other specified condition changes. SR 3.0.4 does not restrict changing MODES or other specified conditions of the Applicability when a Surveillance has not been performed within the specified Frequency, provided the requirement to declare the LCO not met has been delayed in accordance with SR 3.0.3.

The provisions of SR 3.0.4 shall not prevent entry into MODES or other specified conditions in the Applicability that are required to comply with ACTIONS. In addition, the provisions of SR 3.0.4 shall not prevent changes in MODES or other specified conditions in the Applicability that result from any unit shutdown. In this context, a unit shutdown is defined as a change in MODE or other specified condition in the Applicability associated with transitioning from MODE I to MODE 2 or MODE 3, MODE 2 to MODE 3, and MODE 3 to MODE 4.

The precise requirements for performance of SRs are specified such that exceptions to SR 3.0.4 are not necessary. The specific time frames and conditions necessary for meeting the SRs are specified in the Frequency, in the Surveillance, or both. This allows performance of Surveillances when the prerequisite condition(s) specified in a Surveillance procedure require entry into the MODE or other specified condition in the Applicability of the associated LCO prior to the performance or completion of a Surveillance. A Surveillance that could not be performed until after entering the LCO's Applicability, would have its Frequency specified such that it is not "due" until the specific conditions needed are met. Alternately, the Surveillance may be stated in the form of a Note, as not required (to be met or performed) until a particular event, condition, or time has been reached. Further discussion of the specific formats of SRs'. ,r ii annotation is found in Section 1.4, Frequency. A SJ BASES INSERT 3rLCO 3.4.74CS SPECIFIC ACTIVITY BASES)

A Note permits the use of the provisions of LCO 3.0.4.c. This allowance permits entry into the applicable MODE(S) while relying on the ACTIONS.

Attachment 3 to PLA-5764 Page 5 of 5 BASES INSERT 4 (LCO 3.5.1, ECCS - OPERATING)

A Note prohibits the application of LCO 3.0.4.b to an inoperable HPCI subsystem. There is an increased risk associated with entering a MODE or other specified condition in the Applicability with an inoperable HPCI subsystem and the provisions of LCO 3.0.4.b, which allow entry into a MODE or other specified condition in the Applicability with the LCO not met after performance of a risk assessment addressing inoperable systems and components, should hot be applied in this circumstance.

BASES INSERT. d (LCO 3.5.3, RCIC SYSTEM)

A Note prohibits the application of LCO 3.0.4.b to an inoperable RCIC system. There is an increased risk associated with entering a MODE or other specified condition in the Applicability with an inoperable RCIC system and the provisions of LCO 3.0.4.b, which allow entry into a MODE or other specified condition in the Applicability with the LCO not met after performance of a risk assessment addressing inoperable systems and components, should not be applied in this circumstance.

BASES INSERT 6 (LCO 3.8.1, AC SOURCES - OPERATING)

A Note prohibits the application of LCO 3.0.4.b to an inoperable DG. There is an increased risk associated with entering a MODE or other specified condition in the Applicability with an inoperable DG and the provisions of LCO 3.0.4.b, which allow entry into a MODE or other specified condition in the Applicability with the LCO not met after performance of a risk assessment addressing inoperable systems and components, should not be applied in this circumstance.

PPL Rev. 0 LCO APPLICABILITY B 3.0 BASES LCO 3.0.3 asserbli&s'in tne spent fuel storage pool.' Therefore, this LCO can be (continued) applicable in any or all MODES. If the LCO and the Required Actions of LCO 3.7.7 are not met while in MODE 1,2, or 3, there Is no safety benefit to be gained by placing the unit in a shutdown condition. The Required Action of LCO 3.7.7 of "Suspend movement of irradiated fuel assemblies in the spent fuel storage pool" is the appropriate Required Action to complete In lieu of the actions of LCO 3.0.3. These exceptions are addressed Inthe individual SIecifications.

LCO 3.0.A LCO 3.0.4 establi es limitations on c nges in MODES Mother specified conditions in th pplcability when LCO is not met. It recludes placing the unit in a DE or other speciti d condition stated I that Applicability (e.g., Appli ility desired to be tered) when the fo wing exist: 'b /

rTVser i

a. it conditions are s that the require nts of the LCO wo not met in the Appli ility desired to be tered; and

b. Continued non mpliance with the 0 requirements, If e Applicability whre entered, would r sult in the unit bein required to exit the App* bility desired to b entered to comply ith the Required ctions.

Compliance h Required Action at permit continu operation of the u fr an unliied period of time in MODE or other sp cifled condition provides acceptable level o safety for continu operation. This Is without gard to the status the unit before or er the MODE chare.

There re, in such cases, try into a MODE orther specified con 'on in the pplicability may be ade in accordance ith the provisions e Ruired Actions. The rovisions of this S cification should n be terpreted as endor g the failure to ex ise the good pract' of restoring systems or compop!nts to OPERABLE tatus before enteri an associated MODE or othersecified condition in eApplicability.

The provisio of LCO 3.0A shallot prevent changes MODES or other spec'ed conditions in the pplicability (continued)

SUSQUEHANNA - UNIT I B 3.0^5 Revision 0

PPL Rev. 0 LCO APPLICABILITY B3.0 LCO 3.0.5 LCO 3.0.5 establishes the allowance for restoring equipment to service under administrative controls when it has been removed from service or declared inoperable to comply with ACTIONS. The sole purpose of this Specification is to provide an exception to LCO 3.0.2 (e.g., to not comply with the applicable Required Action(s)) to allow the performance of required testing to demonstrate:

a. The OPERABILITY of the equipment being returned to service; or

b. The OPERABILITY of other equipment.

(continued)

SUSQUEHANNA - UNIT I B 3.0-6 Revision 0

PPL Rev. 0 SR Applicability B 3.0 BASES SR 3.0.3- -implement 10 CFR 5G.5(W)(4) and its implameitation cuidanze.4-4ROC -b-(continued) Regulatory Guide 1.182. MAssessing and Managing Risk before Maintenance Activities at Nuclear Power Plants.' This Regulatory Guide addresses consideration of temporary and aggregate risk imoacts, determination of risk management action thresholds, and risk management action UD to and including plant shutdown. The missed Surveillance should be treated as an emergent condition as discussed in the Regulatory Guide. The risk evaluation may use guantitative. qualitative, or blended methods. The degree of depth and rigor of the evaluation should be commensurate with the importance of the component. Missed Surveillances for important components should be analyzed quantitatively. If the results of the risk evaluation determine the risk increase is significant, this evaluation should be used to determine the safest course of action. All missed Surveillances will be placed in the Corrective Action Program.

If a Surveillance is not completed within the allowed delay period, then the equipment is considered inoperable or the variable is considered outside the specified limits and the Completion Times of the Required Actions for the applicable LCO Conditions begin immediately upon expiration of the delay period. If a Surveillance isfailed within the delay period, then the equipment is inoperable, or the variable is outside the specified limits and the Completion Times of the Required Actions for the applicable LCO Conditions begin immediately upon the failure of the Surveillance.

Completion of the Surveillance within the delay period allowed by this Specification, or within the Completion Time of the ACTIONS, restores compliance with SR 3.0.1.

SR 3.0.4 SR 3.0.4 establish the requirement th all applicable SRs st be met

-be before entry into MODE or other sp died condition in the plicability.

This Specifits and requirem tion variable ensures that limi s reem metand component before entry' to PERABILITY MODES or other speciti conditions in the Ap icability for which tfIe systems and comr nents ensure safe o eration of the unit Yeprovisions of this eification should n be interpreted as e orsing e failure to exerci the good practice o estoring systems or mponents to OPERABLE s s before entering a associated MODE oother .

specified condin in the Applicabili SUSQUEHANNA - UNIT 1i .TS/ B3.0-14 Revision lI

PPL Rev. 0 SR Applicability B 3.0 BASES SR 3.0.4- IHowrver, in certsl Crcu61rrnces,, I,.. meet an SR will t result in SR (continued). 3.0.4 restcting MODE change or o specified conditi change. When a system, sub tem, division, com onent, device, or va'ble is inoperable or outside it specified limits, the sociated SR(s) are ot required to be performe per SR 3.0.1, which tes that surveillan s do not have to be perfo d on inoperable eq ment. Whe e is inoperable, S 3.0.4 7-oes not apply to the ssociated SR(s) si e the requirement to he S ) to be performed ismeroved. Therefore ailing to perform th rveillance(s) within e specified Frequen does not result in SR 3.0A estriction to changi MODES or other s cified conditions ofye Applicability. How ver, since the LCO Knot met in this instace, LCO 3.0.4 will govern any strictions that may may not) apply to DE or other specified con ion changes.

The proVAons of SR 3.0.4 sh not prevent change in MODES or other specifi conditions in the A licability that are re ired to comply with ACT NS. Inaddition, th rovisions of LCO 3 .4 shall not prevent ch ges in MODES or er specified conditi s Inthe Applicabili at r sult from any unit S tdown.

The precise requ ments for performa e of SRs are spec d such that exceptions to S 3.0.4 are not nece ary. The specific ti eframes and conditions n essary for meeting t SRs are specifiedXthe Frequency, in the Surveil nce, or both. This a! ws performance ofiurveillances when t prerequi e condition(s) spec in a Surveillance?!rocedure require en into th ODE or other spe fed condition in the pplicability of the ass iated LCO prior to t performance or co pletion of a Surveill ce. A S eillance that could t be performed unt after entering the L pplicability would h e its Frequency spe ied such that it is n due" until the specific conditi s needed are met. temately, the Surv&Ince may be stated in tIAe fo f a Note as not re! red (to be met or perormed) until a particular even condition, or time h been reached. Fu er discussion of the specific f ts of SRs' anno ion Isfound in Secti 1A, Frequency.

SR 3.0. only applicable w en entering MODE from MODE 4, MO 2 from DE 3 or 4, or MO I from MODE 2. rthermore, SR 3.0 is app~ ble when enterin ny other specified ndition in the Appli bility o while operating in ODE 1, 2, or 3. T requirements of 5 3.0.4 do ot apply in MODES and 5, or in other ecified conditions the Applicability (unle in MODE 1, 2, or 3 ecause the ACTI S of individual Spec tions sufficiently d e the remedial rnsures to be taken.

SUSQUEHANNA - UNIT I TS / B 3.0-15 Revision 1

PPL Rev. 0 PAM Instrumentation B 3.3.3.1 BASES

ACTIONS Note 1 has been aged to the ACTIONS t/exclude the MODE c Age restriction of LC .0.4. This exception lows entry into the a icable MODE while raing on the ACTION yven though the ACTI S may eventually r uire plant shutdown. his exception is acce able due to the passive fy.ction of the instrume , the operator's abili o diagnose an accide using alternative ins ments and methods, d the low probability of a event requiring these* struments.

Note e-has been provided to modify the ACTIONS related to PAM instrumentation channels. Section 1.3, Completion Times, specifies that once a Condition has been entered, subsequent divisions, subsystems, components, or variables expressed in the Condition discovered to be inoperable or not within limits, will not result in separate entry Into the Condition. Section 1.3 also specifies that Required Actions of the Condition continue to apply for each additional failure, with Completion Times based on initial entry into the Condition. However, the Required Actions for inoperable PAM instrumentation channels provide appropriate compensa-tory measures for separate Functions. As such, a Note has been provided that allows separate Condition entry for each inoperable PAM Function.

A.1 When one or more Functions have one required channel that is inoperable, the required inoperable channel must be restored to OPERABLE status within 30 days. The 30 day Completion Time is based on operating experience and takes into account the remaining OPERABLE channels, the passive nature of the instrument (no critical automatic action is assumed to occur from these instruments), and the low probability of an event requiring PAM Instrumentation during this interval.

B.1 If a channel has not been restored to OPERABLE status in 30 days, this Required Action specifies initiation of action in accordance with Specification 6.6.7, which requires a written report to be submitted to the NRC. This report discusses the results of the root cause evaluation of the inoperability and identifies proposed restorative actions.

(continued)

SUSQUEHANNA - UNIT 1 TS / B 3.3-71 Revision 2

PPL Rev. 0 Remote Shutdown System B 3.3.3.2 BASES APPLICABILITY necessary instrument control Functions if control room Instruments or control (continued) becomes unavailable. Consequently, the TS do not require OPERABILITY In MODES 3,4, and 5.

ACTIONS lA Note Is include at excludes the ODE change res on of LCO 3.0.4.

This exception Wows entry Into an $plicable MODE w$te relying on the /

ACTIONS eveK though the ACTI S may eventually equire a plant shutdown. is exception is a ptable due to the IW probability of an event req ng this system. //

tNote 2has been provided to modify the ACTIONS related to Remote Shutdown System Functions. Section 1.3, Completion Times, specifies that once a Condition has been entered, subsequent divisions, subsystems, components, or variables expressed In the Condition, discovered to be inoperable or not within limits, will not result in separate entry into the Condition. Section 1.3 also specifies that Required Actions of the Condition I continue to apply for each additional failure, with Completion Times based on initial entry into the Condition. However, the Required Actions for inoperable Remote Shutdown System Functions provide appropriate compensatory measures for separate Functions. As such, a Note has been provided that allows separate Condition entry for each inoperable Remote Shutdown System Function.

A.1 Condition A addresses the situation where one or more required Functions of the Remote Shutdown System is Inoperable. This Includes any Function listed in Table 3.3.3.2-1, as well as the control and transfer switches.

The Required Action is to restore the Function (both divisions, If applicable) to OPERABLE status within 30 days. The Completion Time is based on operating experience and the low probability of an event that would require evacuation of the control room.

(continued)

SUSQUEHANNA - UNIT I B 3.3-78 Revision 0

PPL Rev. 0 RCS Leakage Detection Instrumentation B 3.4.6

- BASES.. - -. e LCO. to determine the extent of any corrective action that may be required. With (continued) the leakage detection systems inoperable, monitoring for LEAKAGE in the RCPB is degraded.

APPLICABILITY In MODES 1, 2, and 3, leakage detection systems are required to be OPERABLE to support LCO 3.4.4. This Applicability is consistent with that for LCO 3.4.4.

ACTIONS A.1 With the drywell floor drain sump monitoring system inoperable, the primary containment atmospheric activity monitor will provide indication of changes in leakage. I With the drywell floor drain sump monitoring system Inoperable, operation may continue for 30 days. However, RCS unidentified and total LEAKAGE is still required to be determined every 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months (SR 3.4.4.1). The 30 day Completion Time of Required Action A.1 Is acceptable, based on operating experience, considering the multiple forms of leakage detection that are still available. R- Uired Aev, *_ ..1 I3 difi-d by a .t9te Nvt} the!

ghst the ORo LCO 3.04 are not applioablc. As a result, e MODE changeiv -

aloed when the r-clfor drip pmntoigcco cineperaeble.

This elcewenee is pfeyided beeeuse ether instrumecntotion is eyeileble te 8.1 and 8.2 With both gaseous and particulate primary containment atmospheric monitoring channels Inoperable, grab samples of the primary containment atmosphere must be taken and analyzed to provide periodic leakage information. Provided a sample is obtainedsand analyzed once every 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months , the plant may be operated for up to 30 days to allow restoration of at least one of the required monitors.

The 12 hour1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months interval provides periodic information that is adequate to detect LEAKAGE. The 30 day Completion Time for (continued)

SUSQUEHANNA - UNIT I B 3.4-32 Revision 0

7° CAXIA S 1 PAU PPL Rev. 0 tZ. tuFraf2 1)J VA' o0"I-i RCS Specific Activity B3.4.7 BASES -- -

APPLICABLE The limits on specific activity are values from a parametric evaluation of SAFETY typical site locations. These limits are conservative because the evaluation ANALYSES considered more restrictive parameters than for a specific site, such as the (continued) location of the site boundary and the meteorological conditions of the site.

RCS specific activity satisfies Criterion 2 of the NRC Policy Statement (Ref. 3).

LCO The specific iodine activity is limited to S 0.2 )Cilgm DOSE EQUIVALENT 1-131. This limit ensures the source term assumed In the safety analysis for the MSLB is not exceeded, so any release of radioactivity to the environment during an MSLB is less than a small fraction of the 10 CFR 100 limits.

APPLICABILITY In MODE 1,and MODES 2 and 3 with any main steam line not isolated, limits on the primary coolant radioactivity are applicable since there Is an escape path for release of radioactive material from the primary coolant to the environment in the event of an MSLB outside of primary containment In MODES 2 and 3 with the main steam lines isolated, such limits do not apply since an escape path does not exist. In MODES 4 and 5, no limits are required since the reactor is not pressurized and the potential for leakage is reduced.

ACTIONS A.1 and A.2 When the reactor coolant specific activity exceeds the LCO DOSE EQUIVALENT 1-131 limit, but is S4.0 gCVgm, samples must be analyzed for DOSE EQUIVALENT 1-131 at least once every 4 hours4.62963e-5 days 0.00111 hours 6.613757e-6 weeks 1.522e-6 months . In addition, the specific activity must be restored to the LCO limit within 48 hours5.555556e-4 days 0.0133 hours 7.936508e-5 weeks 1.8264e-5 months . The Completion Time of once every 4 hours4.62963e-5 days 0.00111 hours 6.613757e-6 weeks 1.522e-6 months is based on the time needed to take.

and analyze a sample. The 48 hour5.555556e-4 days 0.0133 hours 7.936508e-5 weeks 1.8264e-5 months Completion Time to restore the activity level provides a reasonable time for temporary coolant activity Increases (iodine spikes or crud bursts) to be cleaned up with the normal processing systems.

(continued)

SUSQUEHANNA - UNIT 1 B 3.4-36 Revision 0

PPL Rev. 0 RCS Specific Activity B 3.4.7 "rASES ACTIONS A Nole to the Required Actions of Conditin A excludes the MODE change (continued) restriteion of LCG 3.0.4. This mceeption ellews entry into the applicable hODE(B) while reygo the~ACTIONIS evnt o M C t e ~ ds y Jcctually require plant shutdown. This e actldeo D31FA-) significant conservatism incorporated into the specific activity limit, the low 3, probability of an event which is limiting due to exceeding this limit, and the IS(r ability to restore transient specific activity excursions while the plant remains at, or proceeds to power operation.

B.1. B.2.1. B.2.2.1. and B.2.2.2 If the DOSE EQUIVALENT 1-131 cannot be restored to < 0.2 .CVgm within 48 hours5.555556e-4 days 0.0133 hours 7.936508e-5 weeks 1.8264e-5 months , or if at any time it Is > 4.0 p.CVgm, it must be determined at least once every 4 hours4.62963e-5 days 0.00111 hours 6.613757e-6 weeks 1.522e-6 months and all the main steam lines must be Isolated within 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months . Isolatirig the main steam lines precludes the possibility of releasing radioactive material to the environment In an amount that is more than a small fraction of the requirements of 10 CFR 100 during a postulated MSLB accident.

Altematively, the plant can be placed in MODE 3 within 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months and in MODE 4 within 36 hours4.166667e-4 days 0.01 hours 5.952381e-5 weeks 1.3698e-5 months . This option is provided for those Instances when isolation of main steam lines is not desired (e.g., due to the decay heat loads). In MODE 4, the requirements of the LCO are no longer applicable.

The Completion Time of once every 4 hours4.62963e-5 days 0.00111 hours 6.613757e-6 weeks 1.522e-6 months is the time needed to take and analyze a sample. The 12 hour1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months Completion Time is reasonable, based on operating experience, to isolate the main steam lines In an orderly manner and without challenging plant systems. Also, the allowed Completion Times for Required Actions B.2.2.1 and B.2.2.2 for placing the unit In MODES 3 and 4 are reasonable, based on operating experience, to achieve the required plant conditions from full power conditions In an orderly manner and without challenging plant systems.

(continued)

SUSQUEHANNA - UNIT 1 B 3.4-37 Revision 0

PPL Rev. 0 RHR Shutdown Cooling System-Hot Shutdown B 3.4.8 BASES APPLICABILITY the steam in the main condenser. Additionally, In MODE 2 below this (continued) pressure, the OPERABILITY requirements for the Emergency Core Cooling Systems (ECCS) (LCO 3.5.1, "ECCS-Operating") do not allow placing the RHR shutdown cooling subsystem into operation.

The requirements for decay heat removal in MODES 4 and 5 are discussed in LCO 3.4.9, "Residual Heat Removal (RHR) Shutdown Cooling System-Cold Shutdown"; LCO 3.9.8, "Residual Heat Removal (RHR)-High Water Lever; and LCO 3.9.9, "Residual Heat Removal (RHR)-Low Water Level."

ACTIONS A Note to the ACT NS excludes the M DE change restrictio of LCO 3.0.4 Thi exception allows en into the applicable DE(S) while relying on the CTIONS even thou the ACTIONS may ventually require plant shutd n. This exception I acceptable due to t redundancy of the OPERABE subsystems, the I pressure at which e plant Is operating the I0 robability of an eve occurring during op ation in this conditlo and e availability of alte te methods of deca eat removal capably A mesee Note has been provided to modify the ACTIONS related to RHR shutdowh cooling subsystems. Section 1.3, Completion Times, specifies once a Condition has been entered, subsequent divisions, subsystems, components or variables expressed Inthe Condition, discovered to be inoperable or not within limits, will not result in separate entry Into the Condition. Section 1.3 also specifies Required Actions of the Condition continue to apply for each additional failure, with Completion Times based on initial entry into the Condition. However, the Required Actions for Inoperable shutdown cooling subsystems provide appropriate compensatory measures for separate Inoperable shutdown cooling subsystems. As such, a Note has been provided that allows separate Condition entry for each Inoperable RHR shutdown cooling subsystem.

A.1. A.2. and A.3 With one required RHR shutdown cooling subsystem Inoperable for decay heat removal, except as permitted by LCO Note 2, the inoperable subsystem must be restored to OPERABLE status (continued)

SUSQUEHANNA - UNIT I B 3.4-41 Revision 0

PPL Rev. 0 ECCS-Operating B 3.5.1

-11. . I . - -_,; . . .

BASES LCO being manually realigned (remote or local) to the LPCI mode and not (continued) otherwise inoperable. At these low pressures and decay heat levels, a reduced complement of ECCS subsystems should provide the required core cooling, thereby allowing operation of RHR shutdown cooling when necessary.

APPLICABILITY All ECCS subsystems are required to be OPERABLE during MODES .1, 2, and 3, when there is considerable energy in the reactor core and core . *-

cooling would be required to prevent fuel damage in the event of a break In the primary system piping. In MODES 2 and 3, when reactor steam dome pressure is < 150 psig, ADS and HPCI are not required to be OPERABLE because the low pressure ECCS subsystems can provide sufficient flow below this pressure. ECCS requirements for MODES 4 and 5 are specified in LCO 3.5.2, "ECCS-Shutdown."

ACTIONS A.1 If any one low pressure ECCS injection/spray subsystem is Inoperable for reasons other than Condition B, the inoperable subsystem must be restored to OPERABLE status within 7 days. In this Condition, the remaining OPERABLE subsystems provide adequate core cooling during a LOCA.

However, overall ECCS reliability is reduced, because a single failure in one of the remaining OPERABLE subsystems, concurrent with a LOCA, may result in the ECCS not being able to perform its intended safety function.

The 7 day Completion Time is based on a reliability study (Ref. 12) that evaluated the impact on ECCS availability, assuming various components and subsystems were taken out of service. The results were used to calculate the average availability of ECCS equipment needed to mitigate the consequences of a LOCA as a function of allowed outage times (i.e.,

Completion Times).

B.1 If one LPCI pump in one or both LPCI subsystems is Inoperable, the inoperable LPCI pumps must be restored to OPERABLE status within 7 days. In this Condition, the remaining OPERABLE LPCI pumps and at least one CS subsystem (conUnued)

SUSQUEHANNA - UNIT 1 TS / B 3.5-6 Revision 0

PPL Rev. 0 ECCS Shutdown B 3.5.3

. .i . . B.. E BASES ACTIONS X A.1 and A.2I If the RCIC is inoperable during MODE 1, or MODE 2 or 3 with reactor

-3ASE steam dome pressure > 150 psig, and the HPCI System is verified to be OPERABLE, the RCIC System must be restored to OPERABLE status within 14 days. In this Condition, loss of the RCIC System will not affect the overall plant capability to provide makeup inventory at high reactor pressure since the HPCI System is the only high pressure system assumed to function during a loss of coolant accident (LOCA). OPERABILITY of HPCI is therefore verified immediately when the RCIC System is inoperable. This may be performed as an administrative check, by examining logs or other information, to determine if HPCI is out of service for maintenance or other reasons. It does not mean It is necessary to perform the Surveillances needed to demonstrate the OPERABILITY of the HPCI System. If the OPERABILITY of the HPCI System cannot be verified, however, Condition B must be immediately entered. For transients and certain abnormal events with no LOCA, RCIC (as opposed to HPCI) is the preferred source of makeup coolant because of its relatively small capacity, which allows easier control of the RPV water level. Therefore, a limited time is allowed to restore the inoperable RCIC to OPERABLE status.

The 14 day Completion Time Is based on a reliability study (Ref. 3) that evaluated the impact on ECCS availability, assuming various components and subsystems were taken out of service. The results were used to calculate the average availability of ECCS equipment needed to mitigate the consequences of a LOCA as a function of HPCI and RCIC, the AOTs (i.e.,

Completion limes) determined for HPCI are also applied to RCIC.

B.1 and B.2 If the RCIC System cannot be restored to OPERABLE status within the associated Completion Time, or If the HPCI System Is simultaneously inoperable, the plant must be brought to a condition in which the LCO does not apply. To achieve this status, the plant must be brought to at least MODE 3 within 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months and reactor steam dome pressure reduced to 5 150 psig within 36 hours4.166667e-4 days 0.01 hours 5.952381e-5 weeks 1.3698e-5 months . The allowed Completion Times (continued)

SUSQUEHANNA - UNIT 1 B 3.5-27 Revision 0

PPL Rev. 0 Primary Containment Hydrogen Recombiners B 3.6.3.1 BASES (continued)

ACTIONS A.1 With one drywell and/or one suppression chamber hydrogen recombiner inoperable, the inoperable recombiners must be restored to OPERABLE status within 30 days. In this Condition, the remaining OPERABLE recombiners are adequate to perform the hydrogen control function.

However, the overall reliability is reduced because a single failure in the OPERABLE recombiner could result in reduced hydrogen control capability.

The 30 day Completion lime is based on the low probability of the occurrence of a LOCA that would generate hydrogen In amounts capable of exceeding the flammability limit, the amount of time available after the event for operator action to prevent exceeding this limit, and the low probability of failure of the OPERABLE primary containment hydrogen recombiner.

Required Action A. as been modified by ote indicating that the provisions of LCP 3.0.4 are not applicab. As a result, a MODE nge is allowed whennne drywell recombiner d/or one suppression amber recombiner inoperable. This allo nce is provided beca e of the low probabiliy of the occurrence of OCA that would gene e hydrogen in amo ~s capable of exceedin he flammability limit, tlow probability of th ailure of the OPERAB subsystem, and the ount of time available er a postulated LOC or operator action to p ent exceeding the flammability limit.

B.1 and B.2 With two drywell, or two suppression chamber, or 3 or more hydrogen recombiners Inoperable, the ability to perform the hydrogen control function via alternate capabilities must be verified by administrative means within 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months . The alternate hydrogen control capabilities are provided by the containment nitrogen purge system. The 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months Completion Time allows a reasonable period of time to verify that a loss of hydrogen control function does not exist. In addition, the alternate hydrogen control system capability must be verified once per 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months thereafter to ensure its continued availability. Both the initial verification and all subsequent verifications may be performed as an administrative check by examining logs or other information to determine the availability of the alternate hydrogen (continued)

SUSQUEHANNA - UNIT I B 3.6-73 Revision 0

PPL Rev. 0 Drywell Air Flow System B 3.6.3.2 BASES APPLICABILITY above the flammability limit of 4.0 vlo in drywell, assuming a worst case single active failure.

(continued)

In MODE 3, both the hydrogen production rate and the total hydrogen produced after a LOCA would be less than that calculated for the DBA LOCA. Also, because of the limited time in this MODE, the probability of an accident requiring the Drywell Cooling fans Is low. Therefore, the Drywell Cooling fans are not required in MODE 3.

In MODES 4 and 5, the probability and consequences of a LOCA are reduced due to the pressure and temperature limitations in these MODES.

Therefore, the Drywell Cooling fans are not required in these MODES.

ACTIONS A.1 With one required Drywell Cooling fan in one or more pairs inoperable, the inoperable fan must be restored to OPERABLE status within 30 days. In this Condition, the remaining OPERABLE fan is adequate to perform the hydrogen mixing function. However, the overall reliability is reduced because a single failure in the OPERABLE fan could result in reduced hydrogen mixing capability. The 30 day Completion Time is based on the availability of the second fan, the low probability of the occurrence of a LOCA that would generate hydrogen in amounts capable of exceeding the flammability limit, the amount of time available after the event for operator action to prevent exceeding this limit, and the availability of the Primary Containment Hydrogen Recombiner System.

Required Action A. as been modified a Note indicating th he provisions of LcO3.0.4 are not appli le. As a result, a M E change Is allowed when ne Drywell Cooling f in a pair is inoperab . This allowance Is provided ,ecause of the low pr ability of the occurre of a LOCA that would ge erate hydrogen in a nts capable of exc ding the flammabil limit, t low probability of th ailure of the OPER E fan, and the amo t of ti e available after a po lated LOCA for ope tor action to preven e eding the flammabir limit.

(continued)

SUSQUEHANNA - UNIT 1 B 3.6-78 Revision 0

PPL Rev. 1 AC Sources - Operating B 3.8.1 BASES LCO have OPERABLE automatic transfer interlock mecihaiisms to each (continued) ESS bus to support OPERABILITY of that offsIte circuit.

APPLICABILITY The AC sources are required to be OPERABLE in MODES 1, 2, and 3 to ensure that:

a. Acceptable fuel design limits and reactor coolant pressure boundary limits are not exceeded as a result of AOOs or abnormal transients; and

b. Adequate core cooling is provided and containment OPERABILITY and other vital functions are maintained in the event of a postulated DBA.

The AC power requirements for MODES 4 and 5 are covered in LCO 3.8.2, "AC Sources-Shutdown."

ACTIONS T he ACTIONS are modified by a Note which allows entry into associated "Conditions and Required Actions to be delayed for up to 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months when 3AS an OPERABLE diesel generator is placed in an inoperable status for the 7 6 alignment of diesel generator E to or from the ClassI E distribution system. Use of this allowance requires both offsite circuits to be OPERABLE. Entry into the appropriate Conditions and Required Actions shall be made immediately upon the determination that substitution of a required diesel generator will not or can not be completed.

A.1 To ensure a highly reliable power source remains with one offsite circuit inoperable, It is necessary to verify the availability of the remaining required offsite circuit on a more frequent basis. Since the Required Action only specifies "perform," a failure of SR 3.8.1.1 acceptance criteria does not result in a Required Action not met. However, If a second required circuit fails SR 3.8.1.1, the second offsite circuit Is inoperable, and Condition C, for two offsite circuits inoperable, is entered.

(continued)

SUSQUEHANNA - UNIT 1 TS / B3.8-6 Revision 2

Unit 2 TS Bases

Attachment 3 to PLA-5764 Page 1 of 5 BASES INSERT 1 (LCO 3.0.4 BASES)

LCO 3.0.4 establislies-limitations-on changes in MODES-or other specifLied conditions in the Applicability when an LCO is not met. It allows placing the unit in a MODE or other specified condition stated in that Applicability (e.g., the Applicability desired to be entered) when unit conditions are such that the requirements of the LCO would not be met, in accordance with LCO 3.0.4.a, LCO 3.0.4.b, or LCO 3.0.4.c.

LCO 3.0.4.a allows entry into a MODE or other specified condition in the Applicability with the LCO not met when the associated ACTIONS to be entered permit continued operation in the MODE or other specified condition in the Applicability for an unlimited period of time. Compliance with Required Actions that permit continued operation of the unit for an unlimited period of time in a MODE or other specified condition provides an acceptable level of safety for continued operation. This is without regard to the status of the unit before or after the MODE change. Therefore, in such cases, entry into a MODE or other specified condition in the Applicability may be made in accordance with the provisions of the Required Actions.

LCO 3.0.4.b allows entry into a MODE or other specified condition in the Applicability with the LCO not met after performance of a risk assessment addressing inoperable systems and components, consideration of the results, determination of the acceptability of entering the MODE or other specified condition in the Applicability, and establishment of risk management actions, if appropriate.

The risk assessment may use quantitative, qualitative, or blended approaches, and the risk assessment will be conducted using the plant program, procedures, and criteria in place to implement 10 CFR 50.65(a)(4), which requires that risk impacts of maintenance activities to be assessed and managed. The risk assessment, for the purposes of LCO 3.0.4 (b),

must take into account all inoperable Technical Specification equipment regardless of whether the equipment is included in the normal 10 CFR 50.65(a)(4) risk assessment scope. The risk assessments will be conducted using the procedures and guidance endorsed by Regulatory Guide 1.182, "Assessing and Managing Risk Before Maintenance Activities at Nuclear Power Plants." Regulatory Guide 1.182 endorses the guidance in Section 11 of NUMARC 93-0 1, "Industry Guideline for Monitoring the Effectiveness of Maintenance at Nuclear Power Plants." These documents address general guidance for conduct of the risk assessment, quantitative and qualitative guidelines for establishing risk management actions, and example risk management actions. These include actions to plan and conduct other activities in a manner that controls overall risk, increased risk awareness by shift and management personnel, actions to reduce the duration of the condition, actions to minimize the magnitude of risk increases (establishment of backup success paths or compensatory measures), and

Attachment 3 to PLA-5764 Page 2 of 5 determination that the proposed MODE change is acceptable. Consideration should also be given to the probability of completing restoration such that the requirements of the LCO would be met prior to the expiration of ACTIONS Completion Times that would require exiting the Applicability..

LCO 3.0.4.b may be used with single, or multiple systems and components unavailable.

NUMARC 93-01 provides guidance relative to consideration of simultaneous unavailability of multiple systems and components.

The results of the-risk assessment shall be considered in determining the acceptability of entering the MODE or other specified condition in the Applicability, and any corresponding risk management actions. The LCO 3.0.4.b risk assessments do not have to be documented.

The Technical Specifications allow continued operation with equipment unavailable in MODE 1 for the duration of the Completion Time. Since this is allowable, and since in general the risk impact in that particular MODE bounds the risk of transitioning into and through the applicable MODES or other specified conditions in the Applicability of the LCO, the use of the LCO 3.0.4.b allowance should be generally acceptable, as long as the risk is assessed and managed as stated above. However, there is a small subset of systems and components that have been determined to be more important to risk and use of the LCO 3.0.4.b allowance is prohibited. The LCOs governing these system and components contain Notes prohibiting the use of LCO 3.0.4.b by stating that LCO 3.0.4.b is not applicable.

LCO 3.0.4.c allows entry into a MODE or other specified condition in the Applicability with the LCO not met based on a Note in the Specification which states LCO 3.0.4.c is applicable. These specific allowances permit entry into MODES or other specified conditions in the Applicability when the associated ACTIONS to be entered do not provide for continued operation for an unlimited period of time and a risk assessment has not been performed. This allowance may apply to all the ACTIONS or to a specific Required Action of a Specification. The risk assessments performed to justify the use of LCO 3.0.4.b usually only consider systems and components. For this reason, LCO 3.0.4.c is typically applied to Specifications which describe values and parameters (e.g., [Containment Air Temperature, Containment Pressure, MCPR, Moderator Temperature Coefficient]), and may be applied to other Specifications based on NRC plant-specific approval.

. *

J. .-. - -,

The provisions of this Specification should not be interpreted as endorsing the failure to exercise the good practice of restoring systems or components to OPERABLE status before entering an associated MODE or other specified condition in the Applicability.

Attachment 3 to PLA-5764 Page 3 of 5 The provisions of LCO 3.0.4 shall not prevent changes in MODES or other specified conditions in the Applicability that are required to comply with ACTIONS. In addition, the provisions of LCO 3.0.4 shall not prevent changes in MODES or other specified conditions in the Applicability.that result from any unit shutdown. In this ccntzxt 1 a unit - ---

shutdown is defined as a change in MODE or other specified condition in the Applicability associated with transitioning from MODE 1 to MODE 2 or MODE 3, MODE 2 to MODE 3, and MODE 3 to MODE 4.

Upon entry into a MODE or other specified condition in the Applicability with the LCO not met, LCO 3.0.1 and LCO 3.0.2 require entry into the applicable Conditions and Required Actions until the Condition is resolved, until the LCO is met, or until the unit is not within the Applicability of the Technical Specification.

Surveillances do not have to be performed on the associated inoperable equipment (or on variables outside the specified limits), as permitted by SR 3.0.1. Therefore, utilizing LCO 3.0.4 is not a violation of SR 3.0.1 or SR 3.0.4 for any Surveillances that have not been performed on inoperable equipment. However, SRs must be met to ensure OPERABILITY prior to declaring the associated equipment OPERABLE (or variable within limits) and restoring compliance with the affected LCO.

BASES INSERT 2 (SR 3.0.4 BASES)

SR 3.0.4 establishes the requirement that all applicable SRs must be met before entry into a MODE or other specified condition in the Applicability.

This Specification ensures that system and component OPERABILITY requirements and variable limits are met before entry into MODES or other specified conditions in the Applicability for which these systems and components ensure safe operation of the unit.

The provisions of this Specification should not be interpreted as endorsing the failure to exercise the good practice of restoring systems or components to OPERABLE status before entering an associated MODE or other specified condition in the Applicability.

A provision is included to allow entry into a MODE or other specified condition in the Applicability when an LCO is not met due to Surveillance not being met in accordance with LCO 3.0.4.

However, in certain circumstances, failing to meet an SR will not result in SR 3.0.4 restricting a MODE change or other specified condition change. When a system, subsystem, division, component, device, or variable is inoperable or outside its specified limits, the associated SR(s) are not required to be performed, per SR 3.0.1, which states that surveillances do not have to be performed on inoperable equipment. When equipment is inoperable, SR 3.0.4 does not apply to the associated SR(s) since the

Attachment 3 to PLA-5764 Page 4 of 5 requirement for the SR(s) to be performed is removed. Therefore, failing to perform the Surveillance(s) within the specified Frequency does not result in an SR 3.0.4 restriction to changing MODES. or other specified conditions of the Applicability. However, since

-..the-LCO is notwnet in this.instanceLCO 3,0.4 will gqvern any restrictions that may - ..

(or may not) apply to MODE or other specified condition changes. SR 3.0.4 does not restrict changing MODES or other specified conditions of the Applicability when a Surveillance has not been performed within the specified Frequency, provided the requirement to declare the LCO not met has been delayed inlaccordance with SR 3.0.3.

The provisions of SR 3.0.4 shall not prevent entry.into MODES or other specified

conditions in the Applicability that are required to comply with ACTIONS. In addition,

the provisions of SR 3.0.4 shall not prevent changes in MODES or other specified conditions in the Applicability that result from any unit shutdown. In this context, a unit shutdown is defined as a change in MODE or other specified condition in the Applicability associated with transitioning from MODE 1 to MODE 2 or MODE 3, MODE 2 to MODE 3, and MODE 3 to MODE 4.

The precise requirements for performance of SRs are specified such that exceptions to SR 3.0.4 are not necessary. The specific time frames and conditions necessary for meeting the SRs are specified in the Frequency, in the Surveillance, or both. This allows performance of Surveillances when the prerequisite condition(s) specified in a Surveillance procedure require entry into the MODE or other specified condition in the Applicability of the associated LCO prior to the performance or completion of a Surveillance. A Surveillance that could not be performed until after entering the LCO's Applicability, would have its Frequency specified such that it is not "due" until the specific conditions needed are met. Alternately, the Surveillance may be stated in the form of a Note, as not required (to be met or performed) until a particular event, condition, or time has been reached. Further discussion of the specific formats of SRs' annotation is found in Section 1.4, Frequency.

BASES INSERT 3 (LCO 3.4.7, RCS SPECIFIC ACTIVITY BASES)

A Note permits the use of the provisions of LCO 3.0.4.c. This allowance permits entry into the applicable MODE(S) while relying on the ACTIONS.

Attachment 3 to PLA-5764 Page 5 of 5 BASES INSERT 4 (LCO 3.5.1, ECCS - OPERATING)

A Note prohibits the application of LCO 3.0.4.b to an inoperable HPCI subsystem. There s .- an increased risk-associated with entering.-a MODE-or-other-specified condition in the , . ._. .

Applicability with an inoperable HPCI subsystem and the provisions of LCO 3.0.4.b, which allow entry into a MODE or other specified condition in the Applicability with the LCO not met after performance of a risk assessment addressing inoperable systems and components, should not be applied in this circumstance.

BASES INSERT 5 (LCO 3.5.3, RCIC SYSTEM)

A Note prohibits the application of LCO 3.0.4.b to an inoperable RCIC system. There is an increased risk associated-with entering a MODE or other specified condition in the Applicability with an inoperable RCIC system and the provisions of LCO 3.0.4.b, which allow entry into a MODE or other specified condition in the Applicability with the LCO not met after performance of a risk assessment addressing inoperable systems and components, should not be applied in this circumstance.

BASES INSERT 6 (LCO 3.8.1, AC SOURCES - OPERATING)

A Note prohibits the application of LCO 3.0.4.b to an inoperable DG. There is an increased risk associated with entering a MODE or other specified condition in the Applicability with an inoperable DG and the provisions of LCO 3.0.4.b, which allow entry into a MODE or other specified condition in the Applicability with the LCO not met after performance of a risk assessment addressing inoperable systems and components, should not be applied in this circumstance.

PPL Rev. 0 LCO Applicability B 3.0 BASES

- _. 2 - e- -* . - . . -I l LCO 3.0.3 assemblies in the spent fuel storage pool." Therefore, this LCO (continued) can be applicable in any or all MODES. If the LCO and the Required Actions of LCO 3.7.7 are not met while in MODE 1, 2, or 3, there is no safety benefit to be gained by placing the unit in a shutdown condition. The Required Action of LCO 3.7.7 of "Suspend movement of irradiated fuel assemblies in the spent fuel storage pool" is the appropriate Required Action to complete in lieu of the actions of LCO 3.0.3. These exceptions are addressed in the individual Specifications.

LCO 3.0.4 LCO 3.0.4 tablishes limitation changes i ODES or ot specifi conditions in the pplicability whe n LCO is not'et. it pr des placing theft in a MODE or er specified pendition ated in that Appli lity (e.g., Appi ility desired t e entered)

'lwhenthe fol g exist:

ins45ert AI a. it conditions are ch that the re rements of th CO Uwold not be me the Applicabil desired to bentered; and///

b. Conti d noncomplia with the LC requirements the

-Ap bility weree red, would re in the unit ng Squired to exit Applicability sired to be e red to comply with t Requir Actions.

Compliance wi equired Act ' sthat permi ntinued o tion of the unit f an unlimited od of time i MODE or er specified ondition provi s an accept e level of sfty for conti d operation. is is withou ard to the atus of theIit be re or after the ODE chan The re ,jsuch caseentry to a MODE o ther specifi condition in e Applicabimay be made in a dance with provisions the Requir Actions.

The proions of this ecification s uld not be ierpreted as endorng the failur o exercise t good pract e of restorin s ems or corn ents to OP BLE staptbefore entes g an ssociated M E or other ecified con ion in theApcability.

The pr isions of LC .0.4 shall t prevent ch ges in MODES or er specified nditions in e Applicabili (continued)

SUSQUEHANNA - UNIT 2 TS /B 3.0-5 Revision 0

PPL Rev. 0 LCO Applicability B 3.0 BASES LCO 3.0. that are required to cor with ACTIONS. Indition, the provisions of (continued) LCO 3.0.4 shall not vent changes in MOES or other specified co tons in the Applicabil at result from any u Ishutdown.

Exceptiono LCO 3.0.4 are state n the individual Speciions.

Excep, ns may apply to all th CTIONS or to a specif equired Action of a cification.

LCO 3.0.4 is only ap ble when entering ME 3 from MODE 4 ODE 2 from MODE 3 or r MODE 1from MOD . Furthermore, L O3.0A Is applicable wheentering any other spe fed condition in th pplicability only while oprating In MODE 1, 2, . The requireme of LCO 3.0.o not appl n MODES 4 and 5, or other specified co ions of the App ility (unless in MOD 2, or 3) because ACTIONS o dvidual Scifications sufficiently ne the remedial sures to be en.

Surveillances do n ave to be perform on the asso ed inoperable equipment (or o ariables outside t speciied limi as permitted b SR 3.0.1. T efore, changing M ES or otherecified conditia ile in an ACTI S Condition, eithe compliance LCO 3.0.4 or ere an excep~Tn to LCO 3.0.4 is ted, is not a v ation of SR 3.0. r SR 3.0.4 for th Surveillances tha o not have to performed due the associated operable equipme . However, S must be met to insure OPERABILITY prior to declarin g associated uipment OPE E (or variable within limits) and re ring complian with the affecte CO.

LCO 3.0.5 LCO 3.0.5 establishes the allowance for restoring equipment to service under administrative controls when it has been removed from service or declared inoperable to comply with ACTIONS. The sole purpose of this Specification is to provide an exception to LCO 3.0.2 (e.g., to not comply with the applicable Required Action(s)) to allow the performance of required testing to demonstrate:

a. The OPERABILITY of the equipment being returned to service; or

b. The OPERABILITY of other equipment.

(continued)

SUSQUEHANNA- UNIT 2 TS / B 3.0-6 Revision 0

PPL Rev. 0 SR Applicability B3.0 BASES opportunity should include consideration of the impact on olantrisk (from. -

~- . r~ -~ -. delaying the Surveillance as well as arid plant configuration changes required or shutting the plant down to perform the Surveillance) and impact on any analysis assumptions, in addition to unit conditions, planning, availability of personnel, and the time required to perform the Surveillance.

SR 3.0.3 The risk imDact should be managed throuah the program In olace to (continued) implement 10 CFR 50.65(a)(4) and its implementation guidance, NRC Regulatory Guide 1.182. "Assessing and Managing Risk before Maintenance Activities at Nuclear Power Plants." This Regulatory Guide addresses consideration of temporary and aggregate risk impacts. determination of risk manaaement action thresholds, and risk management action up to and including plant shutdown. The missed Surveillance should be treated as an emergent condition as discussed in the Regulatory Guide. The risk evaluation may use quantitative. qualitative, or blended methods.- The degree of depth and rigor of the evaluation should be commensurate with the importance of the component. Missed Surveillances for important components should be analyzed guantitatively. If the results of the risk evaluation determine the risk increase is significant, this evaluation should be used to determine the safest course of action. All missed Surveillances will be placed in the Corrective Action Program.

If a Surveillance is not completed within the allowed delay period, then the equipment is considered inoperable or the variable is considered outside the specified limits and the Completion Times of the Required Actions for the applicable LCO Conditions begin immediately upon expiration of the delay period. If a Surveillance is failed within the delay period, then the equipment is inoperable, or the variable is outside the specified limits and the Completion Times of the Required Actions for the applicable LCO Conditions begin immediately upon the failure of the Surveillance.

Completion of the Surveillance within the delay period allowed by this Specification, or within the Completion Time of the ACTIONS, restores compliance with SR 3.0.1.

SR 3.0.4 _ SR 3.0.A e blishes the r irement thaIpplicable s must be m before ry into a M 0 or other s ied conditio the App Ss Specificati ensures tha tem and co onent OPE0ILITY

-7 crtf .l requirement nd variable Its are met b re entry into DES or other specifie nditions in t Applicability which these tems and co ents ens e operatio e unit.

(continued)

SUSQUEHANNA-UNIT 2 TS / B 3.0-14 Revision 1

PPL Rev. 0 SR Applicability B 3.0 BASES

- -. - --- - - - 1- ' - S.

I*

The ovisions of this ciication sho not be intern ed as endo g failure to exerc' the good pm of restoring stems or co ponents to OPERABLE tus before e ng an assoc d MODE or er specified c dition in the cability.

_~~ ~. .- +.^ r r.: s . ' . - . .

(continued)

SUSQUEHANNA- UNIT 2 TS /B 3.0-15 Revision 1

PPL Rev. 0 SR Applicability B 3.0 BASES SR 3.0.4 However, in certain cir stances, failieo meet an'SR will ot result in (continued) SR 3.0.4 restricting 0ODE change other specified co ition change.

When a system,, bsystem, divisi, component, devi , or variable is inoperable or tside its specif limits, the associa d SR(s) are not required t e performed pe R 3.0.1, which sta that surveillance not have toge performed onj operable equipme .When equipment inop able, SR 3.0.4 es not apply to thesociated SR(s) sin the r pquirement for th R(s) to be perform is removed. Ther re, failng to perform the Su illance(s) within the ecified Frequency es not result in an SR 3.0.4 striction to changin ODES or other sp ed conditions of the Appli ility. However, sinc he LCO is not metj this instance, LCO 3.0.4 govern any restricti s that may (or may t) apply to MODE or oth specified condition c nges.

The provisions of S .0.4 shall not preve changes In MODES other specified conditlo in the Applicability t t are required to co ly with ACTIONS. In dition, the provision f LCO 3.0.4 shall n revent changes in DES or other speck d conditions in the plicability that result froany unit shutdown.

Th recise requirements rperformance of S are specified su hat ceptions to SR 3.0.4 e not necessary. T specific time frays and conditions necessa or meeting the SRs e specified in the requency, in the Surveillance, th. This allows prormance of Surv lances when t prerequisite co ition(s) specified in urveillance pr ure require e into the MO or other specified dition in the Ap bility of the associat CO prior to the pe mance or compAion of a Surve nce. A SurveiL ce that could not b erformed until r entering the 0 Appl bility would have it requency specked such that it i ot "due" until t specific conditions eded are met. Mmately, the S feillance may be tated in the form of ote as not req ed (to be met performed) until particular event, dition, or time h been reache Further discussiof the specilic f ts of SRs' anno ion is found i ection 1.4, Frqcy.

SR 3.0.4' only applicable en entering DE 3 from MOD , MODE 2 from E 3 or 4, or MUE 1 from MO 2. Furthermor R 3.0.4 is appk ble when ente g any other spcified condition in eApplicability o while operatin n MODE 1, 2 r 3. The require nts of SR 3.0.4 do ot apply in MO 5 4 and 5, ori other specified nditions of the Applicability less in MOD , 2, or 3) becaus he ACTIONS of individual Specificatiis sufficiently fine the remedia easures to be taken. .

SUSQUEHANNA - UNIT 2 TS / B 3.0-15 Revision 1

PPL Rev. 0 PAM Instrumentation B 3.3.3.1 BASES ACTIONS Note I has be dded to the TIONS to exc e the MODE ange restriction CO 3.0.4. exception allo entry into th pplicable MODE le relying on eACTIONS ev though the IONS ma eve t~ally require p! t shutdown. T exception is eptable to passive fun n of the instru ntsj the ope r's ability t iagnose an accident ng alternative I ments and ethods, a e low probabili an event re ng these ins ents.

A Note2-xhas been provided to modify the ACTIONS related to PAM instrumentation channels. Section 1.3, Completion Times, specifies that once a Condition has been entered, subsequent divisions, subsystems, components, or variables expressed in the Condition discovered to be inoperable or not within limits, will not result in separate entry into the Condition. Section 1.3 also specifies that Required Actions of the Condition continue to apply for each additional failure, with Completion Times based on initial entry into the Condition. However, the Required Actions for inoperable PAM instrumentation channels provide appropriate compensatory measures for separate Functions. As such, a Note has been provided that allows separate Condition entry for each inoperable PAM Function.

A.1 When one or more Functions have one required channel that is inoperable, the required inoperable channel must be restored to OPERABLE status within 30 days. The 30 day Completion Time is based on operating experience and takes into account the remaining OPERABLE channels, the passive nature of the instrument (no critical automatic action is assumed to occur from these instruments), and the low probability of an event requiring PAM instrumentation during this interval.

B.1 If a channel has not been restored to OPERABLE status in 30 days, this Required Action specifies initiation of action in accordance with Specification 5.6.7, which requires a written report to be submitted to the NRC. This report discusses the results of the root cause evaluation of the inoperability and identifies proposed restorative actions.

(continued)

SUSQUEHANNA - UNIT 2 TS / B3.3-71 Revision 2

PPL Rev. 0 Remote Shutdown System B 3.3.3.2 BASES APPLICABILITY necessary instrument control Functions if control room instruments or (continued) control becomes unavailable. Consequently, the TS do not require OPERABILITY in MODES 3,4, and 5.

ACTIONS A Not scluded t xcludes the DE change r6ction of L 3.0.4. This ception allow ntry into an a cable MOD ile lying on th CTIONS eve ough the ACT NS may eve . aally require a nt shutdown. is exception Icceptable d o the low proba ity of an even quiring this s m.

Note; has been provided to modify the ACTIONS related to Remote Shutdown System Functions. Section 1.3, Completion Times, specifies that once a Condition has been entered, subsequent divisions, subsystems, components, or variables expressed in the Condition, discovered to be inoperable or not within limits, will not result in separate entry into the Condition. Section 1.3 also specifies that Required Actions of the Condition continue to apply for each additional failure, with Completion Times based on initial entry into the Condition. However, the Required Actions for inoperable Remote Shutdown System Functions provide appropriate compensatory measures for separate Functions. As such, a Note has been provided that allows separate Condition entry for each inoperable Remote Shutdown System Function.

A.1 Condition A addresses the situation where one or more required Functions of the Remote Shutdown System is inoperable. This includes any Function listed in Table 3.3.3.2-1, as well as the control and transfer switches.

The Required Action is to restore the Function (both divisions, if applicable) to OPERABLE status within 30 days. The Completion Time is based on operating experience and the low probability of an event that would require evacuation of the control room.

(continued)

SUSQUEHANNA - UNIT 2 TS / B3.3-78 Revision 0

PPL Rev. 0 RCS Leakage Detection Instrumentation B 3.4.6 LCO to determine the extent of any corrective action that may be required. With (continued) the leakage detection systems inoperable, monitoring for LEAKAGE in the RCPB is degraded.

APPLICABILITY In MODES 1,2, and 3leakage detection systems are required to be OPERABLE to support LCO 3.4.4. This Applicability is consistent with that for LCO 3.4.4.

ACTIONS A.1 With the drywell floor drain sump monitoring system inoperable, the primary containment atmospheric activity monitor will provide indication of changes in leakage.

With the drywell floor drain sump monitoring system inoperable, operation may continue for 30 days. However, RCS unidentified and total LEAKAGE is still required to be determined every 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months (SR 3.4.4.1). The 30 day Completion Time of Required Action A.1 is acceptable, based on operating experience, considering the multiple forms of leakage detection that are still available. Requird Aetizn A.1 i medified ly a _ t_that state thAt thc provizions of LCO 3.0.4 are not appliceble. As a rocult, a MODE change ic eo11wed when the drywell floor drain Jump monitoring system i isiperable.

This allewenee is previded beause ether insh-dmientation is eaffele-4ot B.1 and B.2 With both gaseous and particulate primary containment atmospheric monitoring channels inoperable, grab samples of the primary containment atmosphere must be taken and analyzed to provide periodic leakage information. Provided a sample is obtained and analyzed once every 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months , the plant may be operated for up to 30 days to allow restoration of at least one of the required monitors.

The 12 hour1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months interval provides periodic information that is adequate to detect LEAKAGE. The 30 day Completion Time for (continued)

SUSQUEHANNA - UNIT 2 B 3.4-32 Revision 0

Hi -\

4wd chf,5eqe 01j1`fk5t 6 1 RCS PPL Rev. 0 Specific Activity 0/ Ifrt~~ B 3.4.7 BASES APPLICABLE This MSLB release forms the basis for determining offsite doses (Ref. 2).

SAFETY The limits on the specific activity of the primary coolant ensure that the ANALYSES 2 hour2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months thyroid and whole body doses at the site boundary, resulting from an (continued) MSLB outside containment during steady state operation, will not exceed 10% of the dose guidelines of 10 CFR 100.

The limits on specific activity are values from a parametric evaluation of typical site locations. These limits are conservative because the evaluation considered more restrictive parameters than for a specific site, such as the location of the site boundary and the meteorological conditions of the site.

RCS specific activity satisfies Criterion 2 of the NRC Policy Statement (Ref. 3).

LCO The specific iodine activity is limited to

0.2 ljCi/gm DOSE EQUIVALENT 1-131. This limit ensures the source term assumed in the safety analysis for the MSLB is not exceeded, so any release of radioactivity to the environment during an MSLB is less than a small fraction of the 10 CFR 100 limits.

APPLICABILITY In MODE 1, and MODES 2 and 3 with any main steam line not isolated, limits on the primary coolant radioactivity are applicable since there is an escape path for release of radioactive material from the primary coolant to the environment in the event of an MSLB outside of primary containment.

In MODES 2 and 3 with the main steam lines isolated, such limits do not apply since an escape path does not exist. In MODES 4 and 5, no limits are required since the reactor Is not pressurized and the potential for leakage is reduced.

(continued)

SUSQUEHANNA - UNIT 2 B 3.4-36 Revision 0

PPL Rev. 0 RCS Specific Activity B 3.4.7

'-BASES-- (contiiied)

ACTIONS A.1 and A.2 When the reactor coolant specific activity exceeds the LCO DOSE EQUIVALENT 1-131 limit, but is S 4.0 JLCVgm, samples must be analyzed for DOSE EQUIVALENT 1-131 at least once every 4 hours4.62963e-5 days 0.00111 hours 6.613757e-6 weeks 1.522e-6 months . In addition,'the specific activity must be restored to the LCO limit within 48 hours5.555556e-4 days 0.0133 hours 7.936508e-5 weeks 1.8264e-5 months . The Completion Time of once every 4 hours4.62963e-5 days 0.00111 hours 6.613757e-6 weeks 1.522e-6 months is based on the time needed to take and analyze a sample. The 48 hour5.555556e-4 days 0.0133 hours 7.936508e-5 weeks 1.8264e-5 months Completion Time to restore the activity level provides a reasonable time for temporary coolant activity increases (iodine spikes or crud bursts) to be cleaned up with the normal processing systems.

I fi A Noto to the Roquirod Actions of Condition A oxoludes the MODE ehenge Of Tad restriction of LCO 3.0.1. This cmeeptien ellews entry intothe applicabi 1 35 2 MElDE(G) while relying on the ACTFIONS4 even though the AGMIGQN,1 maw IX~Jii e-r ovontually roguiroplantchutdoxwa. Thip eue to the significant conservatism incorporated into the specific activity limit, the low probability of an event which is limiting due to exceeding this limit, and the ability to restore transient specific activity excursions while the plant remains at, or proceeds to power operation.

B.1. B.2.1. B.2.2.1, and B.2.2.2 If the DOSE EQUIVALENT 1-131 cannot be restored to < 0.2 gCi/gm within 48 hours5.555556e-4 days 0.0133 hours 7.936508e-5 weeks 1.8264e-5 months , or If at any time it is > 4.0 jiCVgm, it must be determined at least once every 4 hours4.62963e-5 days 0.00111 hours 6.613757e-6 weeks 1.522e-6 months and all the main steam lines must be isolated within 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months . Isolating the main steam lines precludes the possibility of releasing radioactive material to the environment in an amount that is more than a small fraction of the requirements of 10 CFR 100 during a postulated MSLB accident.

Alternatively, the plant can be placed in MODE 3 within 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months and in MODE 4 within 36 hours4.166667e-4 days 0.01 hours 5.952381e-5 weeks 1.3698e-5 months . This option is provided for those instances when isolation of main steam lines is not desired (e.g., due to the decay heat loads). In MODE 4, the requirements of the LCO are no longer applicable.

(continued)

SUSQUEHANNA - UNIT 2 B 3.4-37 Revision 0

PPL Rev. 0 RHR Shutdown Cooling System-Hot Shutdown B 3.4.8 BASES - - . _ .

APPLICABILITY the steam in the main condenser. Additionally, in MODE 2 below this (continued) pressure, the OPERABILITY requirements for the Emergency Core Cooling Systems (ECCS) (LCO 3.5.1, "ECCS-Operating") do not allow placing the RHR shutdown cooling subsystem into operation.

The requirements for decay heat removal In MODES 4 and 5 are discussed in LCO 3.4.9, "Residual Heat Removal (RHR) Shutdown Cooling System-Cold Shutdown"; LCO 3.9.8, "Residual Heat Removal (RHR)-High Water Lever'; and LCO 3.9.9, "Residual Heat Removal (RHR)-Low Water Level."

ACTIONS A Note t eACTIONS cludes the E change striction of 3..4 hils exceptio Iows enty o the applicaae MODE(S) ie relying o eACTION en though ACTIONS y eventually quire plant shutdown. T exception Icceptable d to the redu ncy of the OPERAB subsystem , he low pres e at which t plant is op ng, the 1k probability own event occu g during op ation in this ndition, a e availabiliof altemate thods of d heat remo capability.

A eeee&nNote has been provided to modify the ACTIONS related to RHR shutdown cooling subsystems. Section 1.3, Completion Times, specifies once a Condition has been entered, subsequent divisions, subsystems, components or variables expressed in the Condition, discovered to be inoperable or not within limits, will not result in separate entry into the Condition. Section 1.3 also specifies Required Actions of the Condition continue to apply for each additional failure, with Completion Times based on initial entry into the Condition. However, the Required Actions for inoperable shutdown cooling subsystems provide appropriate compensatory measures for separate inoperable shutdown cooling subsystems. As such, a Note has been provided that allows separate Condition entry for each inoperable RHR shutdown cooling subsystem.

A.1. A.2. and A.3 With one required RHR shutdown cooling subsystem inoperable for decay heat removal, except as permitted by LCO Note 2, the inoperable subsystem must be restored to OPERABLE status (continued)

SUSQUEHANNA- UNIT 2 B 3.4-41 Revision 0

PPL Rev. 0 ECCS-Operating B 3.5.1 BASES APPLICABILITY All ECCS subsystems are required to be OPERABLE during MODES 1, 2, and 3, when there is considerable energy in the reactor core and core cooling would be required to prevent fuel damage in the event of a break in the primary system piping. In MODES 2 and 3, when reactor steam dome pressure is < 150 psig, ADS and HPCI are not required to be OPERABLE because the low pressure ECCS subsystems can provide sufficient flow below this pressure. ECCS requirements for MODES 4 and 5 are specified in LCO 3.5.2, ECCS-Shutdown."

ACTIONS .1 If any one low pressure ECCS injection/spray subsystem is inoperable for I 5es' reasons other than Condition B, the inoperable subsystem must be restored to OPERABLE status within 7 days. In this Condition, the remaining ID &Set L/ OPERABLE subsystems provide adequate core cooling during a LOCA.

However, overall ECCS reliability is reduced, because a single failure in one of the remaining OPERABLE subsystems, concurrent with a LOCA, may result in the ECCS not being able to perform its intended safety function.

The 7 day Completion Time is based on a reliability study (Ref. 12) that evaluated the impact on ECCS availability, assuming various components and subsystems were taken out of service. The results were used to calculate the average availability of ECCS equipment needed to mitigate the consequences of a LOCA as a function of allowed outage times (i.e., Completion Times).

B.1 If one LPCI pump in one or both LPCI subsystems is inoperable, the inoperable LPCI pumps must be restored to OPERABLE status within 7 days. In this Condition, the remaining OPERABLE LPCI pumps and at least one CS subsystem provide adequate core cooling during a LOCA.

However, overall ECCS reliability is reduced, because a single failure in one of the remaining OPERABLE subsystems, concurrent with a LOCA, may result in the ECCS not being able to perform its intended safety function. A 7 day Completion Time is based on a reliability study cited in Reference 12 and has.been found to be acceptable through operating experience.

(continued)

SUSQUEHANNA - UNIT 2 TS IB 3.5-6 Revision I

PPL Rev. 0 RCIC System B 3.5.3 BASES (continued)

-- ACTIONS Z/-"r-z

. If the RCIC System is inoperable during MODE 1, or MODE 2 or 3 with reactor steam dome pressure >150 psig, and the HPCI System is verified to be OPERABLE, the RCIC System must be restored to OPERABLE status within 14 days. In this Condition, loss of the RCIC llrtls~ertS l

System will not affect the overall plant capability to provide makeup inventory at high reactor pressure since the HPCI System is the only high pressure system assumed to function during a loss of coolant accident (LOCA). OPERABILITY of HPCI is therefore verified immediately when the RCIC System is inoperable. This may be performed as an administrative check, by examining logs or other information, to determine if HPCI is out of service for maintenance or other reasons. It does not mean it is necessary to perform the Surveillances needed to demonstrate the OPERABILITY of the HPCI System. If the OPERABILITY of the HPCI System cannot be verified, however, Condition B must be immediately entered. For transients and certain abnormal events with no LOCA, RCIC (as opposed to HPCI) is the preferred source of makeup coolant because of its relatively small capacity, which allows easier control of the RPV water level. Therefore, a limited time is allowed to restore the inoperable RCIC to OPERABLE status.

The 14 day Completion Time is based on a reliability study (Ref. 3) that evaluated the impact on ECCS availability, assuming various components and subsystems were taken out of service. The results were used to calculate the average availability of ECCS equipment needed to mitigate the consequences of a LOCA as a function of allowed outage times (AOTs). Because of similar functions of HPCI and RCIC, the AOYs (i.e., Completion Times) determined for HPCI are also applied to RCIC.

B.1 and B.2 If the RCIC System cannot be restored to OPERABLE status within the associated Completion Time, or If the HPCI System is simultaneously inoperable, the plant must be brought to a condition in which the LCO does not apply. To achieve this status, the plant must be brought to at least MODE 3 within 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months and reactor steam dome pressure reduced to < 150 psig within 36 hours4.166667e-4 days 0.01 hours 5.952381e-5 weeks 1.3698e-5 months . The allowed Completion Times (continued)

SUSQUEHANNA - UNIT 2 B 3.5-27 Revision 0

PPL Rev. 0 Primary Containment Hydrogen Recombiners B 3.6.3.1 BASES (continued)

ACTIONS A.1 With one drywell and/or one suppression chamber hydrogen recombiner inoperable, the inoperable recombiners must be restored to OPERABLE status within 30 days. In this Condition, the remaining OPERABLE recombiners are adequate to perform the hydrogen control function.

However, the overall reliability is reduced because a single failure in the OPERABLE recombiner could result in reduced hydrogen control capability.

The 30 day Completion Time is based on the low probability of the occurrence of a LOCA that would generate hydrogen in amounts capable of exceeding the flammability limit, the amount of time available after the event for operator action to prevent exceeding this limit, and the low probability of failure of the OPERABLE primary containment hydrogen recombiner.

Required Actio .)1has been m ified by a Note I iating that th provisions CO 3.0.4 are Papplicable. As esult, a MOD hange is allowed en one drywe ecombiner and! ne suppress' hamber rec iner is inope e. This allowans provided beuse of the low obability of the urrence of a L that would erate hydrog n amounts capl e of exceeding flammability it, the low pro ility of the failur the OPERABL ubsystem, a he amount of e available after ostulated LOC r operator aci to prevent e eding the fi inability limit.

B.1 and B.2 With two drywell; or two suppression chamber, or 3 or more hydrogen recombiners inoperable, the ability to perform the hydrogen control function via alternate capabilities must be verified by administrative means within 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months . The alternate hydrogen control capabilities are provided by the containment nitrogen purge system. The 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months Completion Time allows a reasonable period of time to verify that a loss of hydrogen control function does not exist. In addition, the alternate hydrogen control system capability must be verified once per 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months thereafter to ensure its continued availability. Both the initial verification and all subsequent verifications may be performed as an administrative check by examining logs or other information to determine the availability of the alternate hydrogen (continued)

SUSQUEHANNA - UNIT 2 B 3.6-72 Revision 0

PPL Rev. 0 Drywell Air Flow System B 3.6.3.2 BASES APPLICABILITY above the flammability limit of 4.0 v/o in drywell, assuming a worst case (continued) single active failure.

In MODE 3, both the hydrogen production rate and the total hydrogen produced after a LOCA would be less than that calculated for the DBA LOCA. Also, because of the limited time in this MODE, the probability of an accident requiring the Drywell Cooling fans is low. Therefore, the DrywIll Cooling fans are not required in MODE 3.

In MODES 4 and 5, the probability and consequences of a LOCA are reduced due to the pressure and temperature limitations in these MODES.

Therefore, the Drywell Cooling fans are not required in these MODES.

ACTIONS A.1 With one required Drywell Cooling fan in one or more pairs inoperable, the inoperable fan must be restored to OPERABLE status within 30 days. In this Condition, the remaining OPERABLE fan is adequate to perfomi the hydrogen mixing function. However, the overall reliability is reduced because a single failure in the OPERABLE fan could result in reduced hydrogen mixing capability. The 30 day Completion Time is based on the availability of the second fan, the low probability of the occurrence of a LOCA that would generate hydrogen in amounts capable of exceeding the flammability limit, the amount of time available after the event for operator action to prevent exceeding this limit, and the availability of the Primary Containment Hydrogen Recombiner System.

Require ction A.1 ha en modifie y a Note i atng that prov ons of LCO 3. are not ap cable. As a su t, a MO change is wed when on rywell Cool fan in a p' s inoperabl . This allowa s provided b use of the I probability he occurre of a LOC at would gen te hydroge amounts able of exc ding the fla ability limit, th ow probabiliof the failure the OPE LE fan, an e amount of ti available a r a postulate OCA for o rator action prevent ceeding the mability lim/

(continued)

SUSQUEHANNA - UNIT 2 B 3.6-77 Revision 0

PPL Rev. I AC Sources-Operating B 3.8.1 BASES LCO have OPERABLE automatic transfer interlock mechanisms to each (continued) ESS bus to support OPERABILITY of that offsite circuit.

APPLICABILITY The AC sources are required to be OPERABLE in MODES 1,2, and 3 to ensure that:

a. Acceptable fuel design limits and reactor coolant pressure boundary limits are not exceeded as a result of AOOs or abnormal transients; and

b. Adequate core cooling is provided and containment OPERABILITY and other vital functions are maintained in the event of a postulated DBA.

The AC power requirements for MODES 4 and 5 are covered in LCO 3.8.2, "AC Sources-Shutdown."

ACTIONS The ACTIONS are modified by a Note which allows entry into associated Conditions and Required Actions to be delayed for up to 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months when an OPERABLE diesel generator is placed in an inoperable status for the Bnss alignment of diesel generator E to or from the Class I E distribution tI;Jsert b system. Use of this allowance requires both offsite circuits to be OPERABLE. Entry into the appropriate Conditions and Required Actions shall be made immediately upon the determination that substitution of a required diesel generator will not or can not be completed.

A.1 To ensure a highly reliable power source remains with one offsite circuit inoperable, it Is necessary to verify the availability of the remaining required offsite circuit on a more frequent basis. Since the Required Action only specifies "perform," a failure of SR 3.8.1.1 acceptance criteria does not result in a Required Action not met. However, If a second required circuit fails SR 3.8.1.1, the second offsite circuit is inoperable, and Condition C, for two offsite circuits inoperable, is entered.

(continued)

SUSQUEHANNA - UNIT 2 B 3.8-6 Revision 0

v t e Letter Sequence Other
TAC:MC4532, Increase Flexibility in Mode Restraints (Open)
Initiation Acceptance... Administration Questions Answers Results Approval... Other: ML050770173, PLA-5764, Proposed License Amendment Numbers 267 for Unit 1 and 232 for Unit 2 Mode Change Limitations Using the Consolidated Line Item Improvement (CLIIP) Process PLA-5764
MONTHYEAR2004-09-22 [Table View]

PLA-5764, Proposed License Amendment Numbers 267 for Unit 1 and 232 for Unit 2 Mode Change Limitations Using the Consolidated Line Item Improvement (CLIIP) Process PLA-5764

Text

Reference:

Enclosure:

SUBJECT:

1.0 DESCRIPTION

3.0 REGULATORY ANALYSIS

5.0 REFERENCES

Navigation menu

Search